Add time signature at Cursor function

Hi! When I hold ALT key down and click in the indicated spot (see picture below), a new 4/4 time signature appears (and can be immediately editable). Now what I’d like is to be able to add this 4/4 time signature without having to do additional steps (like zooming in and then clicking with ALT pressed). I’d like to only have to place the cursor (where I want the new time signature to appear) and then execute a command (that would still allow me to immediately change 4/4 to something else). This would allow me to split measures faster (i.e. create multiple pick-up bars in my score faster). Thank you.