Try the edit function.

If you want to delete all the notes in Bar1 to Bar 4 for instance,

click Edit (Alt-E) then erase from-to (alt-K)

specify the from bar and the number of bars

select what to erase (chords, melody, soloist, lyrics)

Click OK-Erase

works for me


BIAB for Windows Version 2019 (643)
Windows 10 (1909)