Anim: Add hotkey for keying set operators

This is in response to feedback to the changes from #113504
While it does simplify inserting keyframes,
sometimes artists want to insert keys only to e.g. Location.
This takes longer to do now, since the option is in a menu.

This PR changes the following:

* new `K` hotkey to bring up the "Keying Set" menu.
This will always show the menu, even if a keying set is active.

* `Shift + K` will open a menu to set the active keying set

* with "Pie Menu on Drag" enabled in the user preferences,
hitting `I` and moving the mouse will bring up a pie menu
to insert only specific transform channels

Conceptually this separates the keying set behavior from the
insert keyframe behavior.
`I` will always add keyframes.
While `K` always shows keying set options.

Pull Request: https://projects.blender.org/blender/blender/pulls/115798

scripts/presets/keyconfig/keymap_data/blender_default.py

@@ -4711,9 +4711,9 @@ def km_object_mode(params):
         ("object.join", {"type": 'J', "value": 'PRESS', "ctrl": True}, None),
         ("wm.context_toggle", {"type": 'PERIOD', "value": 'PRESS', "ctrl": True},
          {"properties": [("data_path", 'tool_settings.use_transform_data_origin')]}),
-        ("anim.keyframe_insert", {"type": 'I', "value": 'PRESS'}, None),
+        ("anim.keyframe_insert_menu", {"type": 'K', "value": 'PRESS'}, {"properties": [("always_prompt", True)]}),
         ("anim.keyframe_delete_v3d", {"type": 'I', "value": 'PRESS', "alt": True}, None),
-        ("anim.keying_set_active_set", {"type": 'I', "value": 'PRESS', "shift": True, "ctrl": True, "alt": True}, None),
+        ("anim.keying_set_active_set", {"type": 'K', "value": 'PRESS', "shift": True}, None),
         ("collection.create", {"type": 'G', "value": 'PRESS', "ctrl": True}, None),
         ("collection.objects_remove", {"type": 'G', "value": 'PRESS', "ctrl": True, "alt": True}, None),
         ("collection.objects_remove_all",
@@ -4730,6 +4730,16 @@ def km_object_mode(params):
         *_template_items_context_menu("VIEW3D_MT_object_context_menu", params.context_menu_event),
     ])
 
+    if params.use_pie_click_drag:
+        items.extend([
+            ("anim.keyframe_insert", {"type": 'I', "value": 'CLICK'}, None),
+            op_menu_pie("ANIM_MT_keyframe_insert_pie", {"type": 'I', "value": 'CLICK_DRAG'}),
+        ])
+    else:
+        items.extend([
+            ("anim.keyframe_insert", {"type": 'I', "value": 'PRESS'}, None),
+        ])
+
     if params.legacy:
         items.extend([
             ("object.select_mirror", {"type": 'M', "value": 'PRESS', "shift": True, "ctrl": True}, None),
@@ -4850,9 +4860,9 @@ def km_pose(params):
         ("armature.assign_to_collection", {"type": 'M', "value": 'PRESS', "shift": True}, None),
         ("armature.move_to_collection", {"type": 'M', "value": 'PRESS'}, None),
         ("transform.bbone_resize", {"type": 'S', "value": 'PRESS', "shift": True, "ctrl": True, "alt": True}, None),
-        ("anim.keyframe_insert", {"type": 'I', "value": 'PRESS'}, None),
+        ("anim.keyframe_insert_menu", {"type": 'K', "value": 'PRESS'}, {"properties": [("always_prompt", True)]}),
         ("anim.keyframe_delete_v3d", {"type": 'I', "value": 'PRESS', "alt": True}, None),
-        ("anim.keying_set_active_set", {"type": 'I', "value": 'PRESS', "shift": True, "ctrl": True, "alt": True}, None),
+        ("anim.keying_set_active_set", {"type": 'K', "value": 'PRESS', "shift": True}, None),
         ("pose.push", {"type": 'E', "value": 'PRESS', "ctrl": True}, None),
         ("pose.relax", {"type": 'E', "value": 'PRESS', "alt": True}, None),
         ("pose.breakdown", {"type": 'E', "value": 'PRESS', "shift": True}, None),
@@ -4861,6 +4871,16 @@ def km_pose(params):
         *_template_items_context_menu("VIEW3D_MT_pose_context_menu", params.context_menu_event),
     ])
 
+    if params.use_pie_click_drag:
+        items.extend([
+            ("anim.keyframe_insert", {"type": 'I', "value": 'CLICK'}, None),
+            op_menu_pie("ANIM_MT_keyframe_insert_pie", {"type": 'I', "value": 'CLICK_DRAG'}),
+        ])
+    else:
+        items.extend([
+            ("anim.keyframe_insert", {"type": 'I', "value": 'PRESS'}, None),
+        ])
+
     return keymap
 
 

scripts/startup/bl_ui/__init__.py

@@ -11,6 +11,7 @@ if "bpy" in locals():
     del reload
 
 _modules = [
+    "anim",
     "asset_shelf",
     "node_add_menu",
     "node_add_menu_compositor",

scripts/startup/bl_ui/anim.py

@@ -0,0 +1,31 @@
+from bpy.types import Menu
+
+
+class ANIM_MT_keyframe_insert_pie(Menu):
+    bl_label = "Keyframe Insert Pie"
+
+    def draw(self, context):
+        layout = self.layout
+        pie = layout.menu_pie()
+
+        prop = pie.operator("anim.keyframe_insert_by_name", text="Location")
+        prop.type = "Location"
+
+        prop = pie.operator("anim.keyframe_insert_by_name", text="Scale")
+        prop.type = "Scaling"
+
+        prop = pie.operator("anim.keyframe_insert_by_name", text="Available")
+        prop.type = "Available"
+
+        prop = pie.operator("anim.keyframe_insert_by_name", text="Rotation")
+        prop.type = "Rotation"
+
+
+classes = (
+    ANIM_MT_keyframe_insert_pie,
+)
+
+if __name__ == "__main__":  # only for live edit.
+    from bpy.utils import register_class
+    for cls in classes:
+        register_class(cls)