If you are using BIAB 2016, there's a new feature called "bar based lyrics" that allow you to enter text in a, new added ("layered") row on the chord sheet. Perhaps you could use this feature to put in the measure numbers you want to see. The actual BIAB measure numbers will still be there, but whatever number you choose could be entered as if it were part of a lyric.

If you're not using BIAB 2016 yet, this might be a good reason for you to update.

Jim
Psalm 33:3 Sing unto him a new song; play skillfully with a loud noise.

BIAB 2018 build 519; Dell Inspiron N4110, Windows 10 64 bit, Intel Core i3-2350m running at 2.29 GHz, Memory: 6 GB DDR3, SDRAM 1MHz