5 files changed, 22 insertions, 7 deletions
diff --git a/source/blender/editors/armature/editarmature.c b/source/blender/editors/armature/editarmature.c
index 37314373e98..4a987d15380 100644
--- a/source/blender/editors/armature/editarmature.c
+++ b/source/blender/editors/armature/editarmature.c
@@ -4349,7 +4349,7 @@ void ARMATURE_OT_select_hierarchy(wmOperatorType *ot)
 	/* props */
 	RNA_def_enum(ot->srna, "direction", direction_items,
 	             BONE_SELECT_PARENT, "Direction", "");
-	RNA_def_boolean(ot->srna, "extend", 0, "Add to Selection", "");
+	RNA_def_boolean(ot->srna, "extend", false, "Extend", "Extend the selection");
 }
 
 /* ***************** EditBone Alignment ********************* */
diff --git a/source/blender/editors/armature/poseobject.c b/source/blender/editors/armature/poseobject.c
index 49d4b670cde..38924105316 100644
--- a/source/blender/editors/armature/poseobject.c
+++ b/source/blender/editors/armature/poseobject.c
@@ -576,7 +576,7 @@ void POSE_OT_select_hierarchy(wmOperatorType *ot)
 	
 	/* props */
 	ot->prop = RNA_def_enum(ot->srna, "direction", direction_items, BONE_SELECT_PARENT, "Direction", "");
-	RNA_def_boolean(ot->srna, "extend", 0, "Add to Selection", "");
+	RNA_def_boolean(ot->srna, "extend", false, "Extend", "Extend the selection");
 }
 
 /* ******************* select grouped operator ************* */
diff --git a/source/blender/editors/curve/editcurve.c b/source/blender/editors/curve/editcurve.c
index 53e610401b7..69c4b387856 100644
--- a/source/blender/editors/curve/editcurve.c
+++ b/source/blender/editors/curve/editcurve.c
@@ -5510,7 +5510,7 @@ void CURVE_OT_select_random(wmOperatorType *ot)
 
 	/* properties */
 	RNA_def_float_percentage(ot->srna, "percent", 50.f, 0.0f, 100.0f, "Percent", "Percentage of elements to select randomly", 0.f, 100.0f);
-	RNA_def_boolean(ot->srna, "extend", FALSE, "Extend Selection", "Extend selection instead of deselecting everything first");
+	RNA_def_boolean(ot->srna, "extend", false, "Extend", "Extend the selection");
 }
 
 /********************* every nth number of point *******************/
diff --git a/source/blender/editors/mesh/editmesh_select.c b/source/blender/editors/mesh/editmesh_select.c
index 0af2913dae0..f552a7b46c1 100644
--- a/source/blender/editors/mesh/editmesh_select.c
+++ b/source/blender/editors/mesh/editmesh_select.c
@@ -1758,7 +1758,7 @@ void MESH_OT_select_shortest_path(wmOperatorType *ot)
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
 	
 	/* properties */
-	RNA_def_boolean(ot->srna, "extend", 0, "Extend Select", "");
+	RNA_def_boolean(ot->srna, "extend", false, "Extend", "Extend the selection");
 }
 
 /* ************************************************** */
@@ -2835,6 +2835,9 @@ static int edbm_select_non_manifold_exec(bContext *C, wmOperator *op)
 	BMEdge *e;
 	BMIter iter;
 
+	if (!RNA_boolean_get(op->ptr, "extend"))
+		EDBM_flag_disable_all(em, BM_ELEM_SELECT);
+
 	/* Selects isolated verts, and edges that do not have 2 neighboring
 	 * faces
 	 */
@@ -2874,6 +2877,9 @@ void MESH_OT_select_non_manifold(wmOperatorType *ot)
 	
 	/* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+
+	/* props */
+	RNA_def_boolean(ot->srna, "extend", true, "Extend", "Extend the selection");
 }
 
 static int edbm_select_random_exec(bContext *C, wmOperator *op)
@@ -2938,8 +2944,7 @@ void MESH_OT_select_random(wmOperatorType *ot)
 	/* props */
 	RNA_def_float_percentage(ot->srna, "percent", 50.f, 0.0f, 100.0f,
 	                         "Percent", "Percentage of elements to select randomly", 0.f, 100.0f);
-	RNA_def_boolean(ot->srna, "extend", 0,
-	                "Extend Selection", "Extend selection instead of deselecting everything first");
+ 	RNA_def_boolean(ot->srna, "extend", false, "Extend", "Extend the selection");
 }
 
 static int edbm_select_next_loop_exec(bContext *C, wmOperator *UNUSED(op))
diff --git a/source/blender/editors/mesh/editmesh_tools.c b/source/blender/editors/mesh/editmesh_tools.c
index 1ab130a950f..951c8b4e9b3 100644
--- a/source/blender/editors/mesh/editmesh_tools.c
+++ b/source/blender/editors/mesh/editmesh_tools.c
@@ -3838,6 +3838,9 @@ static int edbm_select_face_by_sides_exec(bContext *C, wmOperator *op)
 	const int numverts = RNA_int_get(op->ptr, "number");
 	const int type = RNA_enum_get(op->ptr, "type");
 
+	if (!RNA_boolean_get(op->ptr, "extend"))
+		EDBM_flag_disable_all(em, BM_ELEM_SELECT);
+
 	BM_ITER_MESH (efa, &iter, em->bm, BM_FACES_OF_MESH) {
 
 		int select;
@@ -3897,9 +3900,10 @@ void MESH_OT_select_face_by_sides(wmOperatorType *ot)
 	/* properties */
 	RNA_def_int(ot->srna, "number", 4, 3, INT_MAX, "Number of Vertices", "", 3, INT_MAX);
 	RNA_def_enum(ot->srna, "type", type_items, 1, "Type", "Type of comparison to make");
+	RNA_def_boolean(ot->srna, "extend", TRUE, "Extend", "Extend the selection");
 }
 
-static int edbm_select_loose_verts_exec(bContext *C, wmOperator *UNUSED(op))
+static int edbm_select_loose_verts_exec(bContext *C, wmOperator *op)
 {
 	Object *obedit = CTX_data_edit_object(C);
 	BMEditMesh *em = BMEdit_FromObject(obedit);
@@ -3907,6 +3911,9 @@ static int edbm_select_loose_verts_exec(bContext *C, wmOperator *UNUSED(op))
 	BMEdge *eed;
 	BMIter iter;
 
+	if (!RNA_boolean_get(op->ptr, "extend"))
+		EDBM_flag_disable_all(em, BM_ELEM_SELECT);
+
 	BM_ITER_MESH (eve, &iter, em->bm, BM_VERTS_OF_MESH) {
 		if (!eve->e) {
 			BM_vert_select_set(em->bm, eve, TRUE);
@@ -3938,6 +3945,9 @@ void MESH_OT_select_loose_verts(wmOperatorType *ot)
 
 	/* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+
+	/* props */
+	RNA_def_boolean(ot->srna, "extend", false, "Extend", "Extend the selection");
 }
 
 static int edbm_select_mirror_exec(bContext *C, wmOperator *op)