As an example, if you prefer 7/8 to be played as 3+2+2 instead of the more conventional 2+2+3 you can create a compound time signature in the editor. Use copy and paste to make the editing faster.

Other examples:
7/4 as 3/4 + 4/4 instead of the player’s default to 4/4 + 3/4
5/4 as 2/4 + 3/4 instead of the player’s default to 3/4 + 2/4