diff --git a/source/blender/bmesh/intern/bmesh_opdefines.c b/source/blender/bmesh/intern/bmesh_opdefines.c
index 560c5b4aef0..957a97b61fa 100644
--- a/source/blender/bmesh/intern/bmesh_opdefines.c
+++ b/source/blender/bmesh/intern/bmesh_opdefines.c
@@ -693,6 +693,7 @@ BMOpDefine def_dupeop = {
 	{BMOP_OPSLOT_MAPPING, "facemap"},
 	{BMOP_OPSLOT_MAPPING, "boundarymap"},
 	{BMOP_OPSLOT_MAPPING, "isovertmap"},
+	{BMOP_OPSLOT_PNT, "dest"}, /*destination bmesh, if NULL will use current one*/
 	{0} /*null-terminating sentinel*/},
 	dupeop_exec,
 	0
@@ -704,6 +705,7 @@ BMOpDefine def_splitop = {
 	{BMOP_OPSLOT_ELEMENT_BUF, "geomout"},
 	{BMOP_OPSLOT_MAPPING, "boundarymap"},
 	{BMOP_OPSLOT_MAPPING, "isovertmap"},
+	{BMOP_OPSLOT_PNT, "dest"}, /*destination bmesh, if NULL will use current one*/
 	{0} /*null-terminating sentinel*/},
 	splitop_exec,
 	0
diff --git a/source/blender/bmesh/intern/bmesh_operators.c b/source/blender/bmesh/intern/bmesh_operators.c
index 2f298902c3c..14dfac18cba 100644
--- a/source/blender/bmesh/intern/bmesh_operators.c
+++ b/source/blender/bmesh/intern/bmesh_operators.c
@@ -1250,7 +1250,6 @@ int BMO_VInitOpf(BMesh *bm, BMOperator *op, char *fmt, va_list vlist)
 	return 1;
 error:
 	BMO_Finish_Op(bm, op);
-	free(fmt);
 	return 0;
 }
 
diff --git a/source/blender/bmesh/operators/bmesh_dupeops.c b/source/blender/bmesh/operators/bmesh_dupeops.c
index b67ff66097d..86ab8ed7cf4 100644
--- a/source/blender/bmesh/operators/bmesh_dupeops.c
+++ b/source/blender/bmesh/operators/bmesh_dupeops.c
@@ -156,7 +156,6 @@ static void copy_mesh(BMOperator *op, BMesh *source, BMesh *target)
 
 	BMVert *v = NULL, *v2;
 	BMEdge *e = NULL, **edar = NULL;
-	BMLoop *l = NULL;
 	BMFace *f = NULL;
 	
 	BMIter verts;
@@ -314,12 +313,16 @@ BMesh *bmesh_make_mesh_from_mesh(BMesh *bm, int allocsize[4])
 void dupeop_exec(BMesh *bm, BMOperator *op)
 {
 	BMOperator *dupeop = op;
+	BMesh *bm2 = BMO_Get_Pnt(op, "dest");
 	
+	if (!bm2)
+		bm2 = bm;
+		
 	/*flag input*/
 	BMO_Flag_Buffer(bm, dupeop, "geom", DUPE_INPUT, BM_ALL);
 
 	/*use the internal copy function*/
-	copy_mesh(dupeop, bm, bm);
+	copy_mesh(dupeop, bm, bm2);
 	
 	/*Output*/
 	/*First copy the input buffers to output buffers - original data*/
diff --git a/source/blender/editors/mesh/bmesh_tools.c b/source/blender/editors/mesh/bmesh_tools.c
index ae37c6f9337..d1febba944d 100644
--- a/source/blender/editors/mesh/bmesh_tools.c
+++ b/source/blender/editors/mesh/bmesh_tools.c
@@ -60,6 +60,7 @@
 #include "BLI_heap.h"
 #include "BLI_array.h"
 
+#include "BKE_material.h"
 #include "BKE_context.h"
 #include "BKE_customdata.h"
 #include "BKE_depsgraph.h"
@@ -71,6 +72,7 @@
 #include "BKE_bmesh.h"
 #include "BKE_report.h"
 #include "BKE_tessmesh.h"
+#include "BKE_main.h"
 
 #include "BIF_gl.h"
 #include "BIF_glutil.h"
@@ -83,6 +85,7 @@
 #include "ED_util.h"
 #include "ED_screen.h"
 #include "ED_transform.h"
+#include "ED_object.h"
 
 #include "UI_interface.h"
 
@@ -1653,7 +1656,7 @@ void EDBM_reveal_mesh(BMEditMesh *em)
 	BMIter iter;
 	BMHeader *ele;
 	int i, types[3] = {BM_VERTS_OF_MESH, BM_EDGES_OF_MESH, BM_FACES_OF_MESH};
-	int sels[3] = {1, !(em->selectmode & SCE_SELECT_VERTEX), !(em->selectmode & SCE_SELECT_VERTEX | SCE_SELECT_EDGE)};
+	int sels[3] = {1, !(em->selectmode & SCE_SELECT_VERTEX), !(em->selectmode & (SCE_SELECT_VERTEX | SCE_SELECT_EDGE))};
 
 	for (i=0; i<3; i++) {
 		BM_ITER(ele, &iter, em->bm, types[i], NULL) {
@@ -2347,8 +2350,6 @@ static EnumPropertyItem *merge_type_itemf(bContext *C, PointerRNA *ptr, int *fre
 
 void MESH_OT_merge(wmOperatorType *ot)
 {
-	PropertyRNA *prop;
-
 	/* identifiers */
 	ot->name= "Merge";
 	ot->idname= "MESH_OT_merge";
@@ -3720,26 +3721,98 @@ void MESH_OT_knife_cut(wmOperatorType *ot)
 	RNA_def_int(ot->srna, "cursor", BC_KNIFECURSOR, 0, INT_MAX, "Cursor", "", 0, INT_MAX);
 }
 
+static int mesh_separate_selected(Main *bmain, Scene *scene, Base *editbase, wmOperator *wmop)
+{
+	Base *basenew;
+	BMIter iter;
+	BMVert *v;
+	BMEdge *e;
+	Object *obedit = editbase->object;
+	Mesh *me = obedit->data;
+	BMEditMesh *em = me->edit_btmesh;
+	BMesh *bmnew;
+	int allocsize[] = {512, 512, 2048, 512};
+	
+	if (!em)
+		return OPERATOR_CANCELLED;
+		
+	bmnew = BM_Make_Mesh(allocsize);
+	CustomData_copy(&bmnew->vdata, &em->bm->vdata, CD_MASK_BMESH, CD_CALLOC, 0);
+	CustomData_copy(&bmnew->edata, &em->bm->edata, CD_MASK_BMESH, CD_CALLOC, 0);
+	CustomData_copy(&bmnew->ldata, &em->bm->ldata, CD_MASK_BMESH, CD_CALLOC, 0);
+	CustomData_copy(&bmnew->pdata, &em->bm->pdata, CD_MASK_BMESH, CD_CALLOC, 0);
+
+	CustomData_bmesh_init_pool(&bmnew->vdata, allocsize[0]);
+	CustomData_bmesh_init_pool(&bmnew->edata, allocsize[1]);
+	CustomData_bmesh_init_pool(&bmnew->ldata, allocsize[2]);
+	CustomData_bmesh_init_pool(&bmnew->pdata, allocsize[3]);
+		
+	basenew= ED_object_add_duplicate(bmain, scene, editbase, USER_DUP_MESH);	/* 0 = fully linked */
+	assign_matarar(basenew->object, give_matarar(obedit), *give_totcolp(obedit)); /* new in 2.5 */
+
+	ED_base_object_select(basenew, BA_DESELECT);
+	
+	EDBM_CallOpf(em, wmop, "dupe geom=%hvef dest=%p", BM_SELECT, bmnew);
+	EDBM_CallOpf(em, wmop, "del geom=%hvef context=%i", BM_SELECT, DEL_FACES);
+	
+	/*clean up any loose edges*/
+	BM_ITER(e, &iter, em->bm, BM_EDGES_OF_MESH, NULL) {
+		if (BM_TestHFlag(e, BM_HIDDEN))
+			continue;
+
+		if (BM_Edge_FaceCount(e) != 0)
+			BM_Select(em->bm, e, 0); /*deselect*/
+	}
+	EDBM_CallOpf(em, wmop, "del geom=%hvef context=%i", BM_SELECT, DEL_EDGES);
+
+	/*clean up any loose verts*/
+	BM_ITER(v, &iter, em->bm, BM_VERTS_OF_MESH, NULL) {
+		if (BM_TestHFlag(v, BM_HIDDEN))
+			continue;
+
+		if (BM_Vert_EdgeCount(v) != 0)
+			BM_Select(em->bm, v, 0); /*deselect*/
+	}
+	
+	EDBM_CallOpf(em, wmop, "del geom=%hvef context=%i", BM_SELECT, DEL_VERTS);
+	
+	BM_Compute_Normals(bmnew);
+	BMO_CallOpf(bmnew, "bmesh_to_mesh mesh=%p object=%p", basenew->object->data, basenew->object);
+		
+	BM_Free_Mesh(bmnew);
+	
+	return 1;
+}
+
+static int mesh_separate_material(Main *bmain, Scene *scene, Base *editbase, wmOperator *wmop)
+{
+	return 0;
+}
+
+static int mesh_separate_loose(Main *bmain, Scene *scene, Base *editbase, wmOperator *wmop)
+{
+	return 0;
+}
+
 static int mesh_separate_exec(bContext *C, wmOperator *op)
 {
-#if 0
+	Main *bmain = CTX_data_main(C);
 	Scene *scene= CTX_data_scene(C);
 	Base *base= CTX_data_active_base(C);
 	int retval= 0, type= RNA_enum_get(op->ptr, "type");
 	
 	if(type == 0)
-		retval= mesh_separate_selected(scene, base);
+		retval= mesh_separate_selected(bmain, scene, base, op);
 	else if(type == 1)
-		retval= mesh_separate_material (scene, base);
+		retval= mesh_separate_material (bmain, scene, base, op);
 	else if(type == 2)
-		retval= mesh_separate_loose(scene, base);
+		retval= mesh_separate_loose(bmain, scene, base, op);
 	   
 	if(retval) {
 		WM_event_add_notifier(C, NC_GEOM|ND_DATA, base->object->data);
 		return OPERATOR_FINISHED;
 	}
 
-#endif
 	return OPERATOR_CANCELLED;
 }
 
@@ -3767,7 +3840,7 @@ void MESH_OT_separate(wmOperatorType *ot)
 	/* flags */
 	ot->flag= OPTYPE_REGISTER|OPTYPE_UNDO;
 	
-	RNA_def_enum(ot->srna, "type", prop_separate_types, 0, "Type", "");
+	ot->prop = RNA_def_enum(ot->srna, "type", prop_separate_types, 0, "Type", "");
 }
 
 
diff --git a/source/blender/editors/mesh/knifetool.c b/source/blender/editors/mesh/knifetool.c
index bbe0adc9d27..89b63183c31 100755
--- a/source/blender/editors/mesh/knifetool.c
+++ b/source/blender/editors/mesh/knifetool.c
@@ -115,11 +115,12 @@ typedef struct KnifeEdge {
 #define DEL			8
 
 typedef struct BMEdgeHit {
-	BMEdge *e;
+	KnifeEdge *kfe;
 	float hit[3];
 	float shit[3];
 	float l; /*lambda along line*/
 	BMVert *v; //set if snapped to a vert
+	BMFace *f;
 } BMEdgeHit;
 
 /* struct for properties used while drawing */
@@ -495,18 +496,20 @@ static void knife_add_cut(knifetool_opdata *kcd)
 		lh = kcd->linehits;
 		lastlh = firstlh = NULL;
 		for (i=0; i<kcd->totlinehit; i++, (lastlh=lh), lh++) {
+			BMFace *f = lastlh ? lastlh->f : lh->f;
+			
 			if (lastlh && len_v3v3(lastlh->hit, lh->hit) == 0.0f) {
 				if (!firstlh)
 					firstlh = lastlh;
 				continue;
 			} else if (lastlh && firstlh) {
 				if (firstlh->v || lastlh->v) {
-					BMVert *bmv = firstlh->v ? firstlh->v : lastlh->v;
+					KnifeVert *kfv = firstlh->v ? firstlh->v : lastlh->v;
 					
-					kcd->prevvert = get_bm_knife_vert(kcd, bmv);
+					kcd->prevvert = kfv;
 					copy_v3_v3(kcd->prevco, firstlh->hit);
 					kcd->prevedge = NULL;
-					kcd->prevbmface = firstlh->e->l ? firstlh->e->l->f : NULL;
+					kcd->prevbmface = f;
 				}
 				lastlh = firstlh = NULL;
 			}
@@ -514,9 +517,9 @@ static void knife_add_cut(knifetool_opdata *kcd)
 			if (!lastlh && len_v3v3(kcd->prevco, lh->hit) < FLT_EPSILON*10)
 				continue;
 			
-			kcd->curedge = get_bm_knife_edge(kcd, lh->e);
-			kcd->curbmface = kcd->curedge->e->l ? kcd->curedge->e->l->f : NULL;
-			kcd->curvert = lh->v ? get_bm_knife_vert(kcd, lh->v) : NULL;
+			kcd->curedge = lh->kfe;
+			kcd->curbmface = lh->f;
+			kcd->curvert = lh->v;
 			copy_v3_v3(kcd->vertco, lh->hit);
 
 			knife_add_single_cut(kcd);
@@ -607,17 +610,17 @@ static void knifetool_draw(const bContext *C, ARegion *ar, void *arg)
 		for (i=0; i<kcd->totlinehit; i++, lh++) {
 			float sv1[3], sv2[3];
 
-			view3d_project_float_v3(kcd->ar, lh->e->v1->co, sv1, kcd->projmat);
-			view3d_project_float_v3(kcd->ar, lh->e->v2->co, sv2, kcd->projmat);
+			view3d_project_float_v3(kcd->ar, lh->kfe->v1->co, sv1, kcd->projmat);
+			view3d_project_float_v3(kcd->ar, lh->kfe->v2->co, sv2, kcd->projmat);
 			
 			if (len_v2v2(lh->shit, sv1) < kcd->vthresh/4) {
-				copy_v3_v3(lh->hit, lh->e->v1->co);
+				copy_v3_v3(lh->hit, lh->kfe->v1->co);
 				glVertex3fv(lh->hit);
-				lh->v = lh->e->v1;
+				lh->v = lh->kfe->v1;
 			} else if (len_v2v2(lh->shit, sv2) < kcd->vthresh/4) {
-				copy_v3_v3(lh->hit, lh->e->v2->co);
+				copy_v3_v3(lh->hit, lh->kfe->v2->co);
 				glVertex3fv(lh->hit);
-				lh->v = lh->e->v2;
+				lh->v = lh->kfe->v2;
 			}
 		}
 		glEnd();
@@ -709,34 +712,45 @@ BMEdgeHit *knife_edge_tri_isect(knifetool_opdata *kcd, BMBVHTree *bmtree, float
 		ls = (BMLoop**)kcd->em->looptris[result->indexA];
 		
 		for (j=0; j<3; j++) {
-			if (isect_line_tri_v3(ls[j]->e->v1->co, ls[j]->e->v2->co, v1, v2, v3, &lambda, uv)) {
-				float no[3], view[3], sp[3];
+			ListBase *lst = knife_get_face_kedges(kcd, ls[j]->f);
+			Ref *ref;
 				
-				sub_v3_v3v3(p, ls[j]->e->v2->co, ls[j]->e->v1->co);
-				mul_v3_fl(p, lambda);
-				add_v3_v3(p, ls[j]->e->v1->co);
+			for (ref=lst->first; ref; ref=ref->next) {			
+				KnifeEdge *kfe = ref->ref;
 				
-				view3d_project_float_v3(kcd->ar, p, sp, kcd->projmat);
-				view3d_unproject(mats, view, sp[0], sp[1], 0.0f);
-				sub_v3_v3v3(view, p, view);
-				normalize_v3(view);
-
-				copy_v3_v3(no, view);
-				mul_v3_fl(no, -0.00001);
-				
-				/*go backwards toward view a bit*/
-				add_v3_v3(p, no);
-				
-				if (!BMBVH_RayCast(bmtree, p, no, NULL) && !BLI_smallhash_haskey(ehash, (intptr_t)ls[j]->e)) {
-					BMEdgeHit hit;
+				if (isect_line_tri_v3(kfe->v1->co, kfe->v2->co, v1, v2, v3, &lambda, uv)) {
+					float no[3], view[3], sp[3];
 					
-					hit.e = ls[j]->e;
-					hit.v = NULL;
-					copy_v3_v3(hit.hit, p);
-					view3d_project_float_v3(kcd->ar, hit.hit, hit.shit, kcd->projmat);
+					sub_v3_v3v3(p, kfe->v2->co, kfe->v1->co);
+					mul_v3_fl(p, lambda);
+					add_v3_v3(p, kfe->v1->co);
 					
-					BLI_array_append(edges, hit);
-					BLI_smallhash_insert(ehash, (intptr_t)ls[j]->e, NULL);
+					view3d_project_float_v3(kcd->ar, p, sp, kcd->projmat);
+					view3d_unproject(mats, view, sp[0], sp[1], 0.0f);
+					sub_v3_v3v3(view, p, view);
+					normalize_v3(view);
+	
+					copy_v3_v3(no, view);
+					mul_v3_fl(no, -0.00001);
+					
+					/*go backwards toward view a bit*/
+					add_v3_v3(p, no);
+					
+					if (!BMBVH_RayCast(bmtree, p, no, NULL) && !BLI_smallhash_haskey(ehash, (intptr_t)kfe)) {
+						BMEdgeHit hit;
+						
+						hit.kfe = kfe;
+						hit.v = NULL;
+						
+						knife_find_basef(kcd, kfe);
+						hit.f = kfe->basef;
+						
+						copy_v3_v3(hit.hit, p);
+						view3d_project_float_v3(kcd->ar, hit.hit, hit.shit, kcd->projmat);
+						
+						BLI_array_append(edges, hit);
+						BLI_smallhash_insert(ehash, (intptr_t)kfe, NULL);
+					}
 				}
 			}
 		}
@@ -1484,13 +1498,18 @@ static int knifetool_modal (bContext *C, wmOperator *op, wmEvent *event)
 		case ESCKEY:
 		case RETKEY: /* confirm */ // XXX hardcoded
 			if (event->val == KM_RELEASE) {
-				/* finish */
-				ED_region_tag_redraw(kcd->ar);
-				
-				knifetool_finish(C, op);
-				knifetool_exit(C, op);
-				
-				return OPERATOR_FINISHED;
+				if (kcd->mode == MODE_DRAGGING && event->type == ESCKEY) {
+					kcd->mode = MODE_IDLE;
+					ED_region_tag_redraw(kcd->ar);					
+				} else {				
+					/* finish */
+					ED_region_tag_redraw(kcd->ar);
+					
+					knifetool_finish(C, op);
+					knifetool_exit(C, op);
+					
+					return OPERATOR_FINISHED;
+				}
 			}
 			
 			ED_region_tag_redraw(kcd->ar);
diff --git a/source/blender/editors/transform/transform_generics.c b/source/blender/editors/transform/transform_generics.c
index 6d8ae1bb6d3..92de95252c3 100644
--- a/source/blender/editors/transform/transform_generics.c
+++ b/source/blender/editors/transform/transform_generics.c
@@ -1024,7 +1024,6 @@ int initTransInfo (bContext *C, TransInfo *t, wmOperator *op, wmEvent *event)
 		}
 	}
 
-	/* setting PET flag only if property exist in operator. Otherwise, assume it's not supported */
 	if (op && RNA_struct_find_property(op->ptr, "proportional"))
 	{
 		if (RNA_property_is_set(op->ptr, "proportional"))
@@ -1038,9 +1037,8 @@ int initTransInfo (bContext *C, TransInfo *t, wmOperator *op, wmEvent *event)
 				break;
 			}
 		}
-	}
-	else
-	{
+		else
+		{
 			/* use settings from scene only if modal */
 			if (t->flag & T_MODAL)
 			{
@@ -1058,7 +1056,37 @@ int initTransInfo (bContext *C, TransInfo *t, wmOperator *op, wmEvent *event)
 						t->flag |= T_PROP_EDIT;
 					}
 				}
+			}
 		}
+		
+		if (op && RNA_struct_find_property(op->ptr, "proportional_size") && RNA_property_is_set(op->ptr, "proportional_size"))
+		{
+			t->prop_size = RNA_float_get(op->ptr, "proportional_size");
+		}
+		else
+		{
+			t->prop_size = ts->proportional_size;
+		}
+		
+		
+		/* TRANSFORM_FIX_ME rna restrictions */
+		if (t->prop_size <= 0)
+		{
+			t->prop_size = 1.0f;
+		}
+		
+		if (op && RNA_struct_find_property(op->ptr, "proportional_edit_falloff") && RNA_property_is_set(op->ptr, "proportional_edit_falloff"))
+		{
+			t->prop_mode = RNA_enum_get(op->ptr, "proportional_edit_falloff");
+		}
+		else
+		{
+			t->prop_mode = ts->prop_mode;
+		}
+	}
+	else /* add not pet option to context when not available */
+	{
+		t->options |= CTX_NO_PET;
 	}
 	
 	setTransformViewMatrices(t);