funtion WM_keymap_add_item() now returns keymap-item, so you can use it to set default properties for operators with WM_keymap_property_set(). Brecht will fill in this function, requires rna magic! Example: an operator ED_OB_OT_add_primitive can be configured with keymap like this: WM_keymap_property_set(keymapitem, "Primitivetype", "Sphere"); Similar conventions we can use later for button/menu calls. This will make creating operators easier, allowing a developer to group tools functionality nicely.