Further to Matt's comment....

In a lot of American standards from the Tin Pan Alley era (1920s - 1909s), the bridge section (in particular) often transitions through one or two key changes. During these sections, I have found it beneficial to set the temporary key to what the V7 - I progression indicates.

For example, in the key of C, I often write a bridge that uses the last few chords to transition to the key of G before returning to the key of C in the final section. Thus a chord sequence (say) of Am - D7 - G happens where Am is a pivot chord (since it occurs in both the C and G major scales) and it leads to a II - V7 progression in key G. The chords D7 - G indicate that I have temporarily entered the key of G since D7 - G is a V7 - I progression in G major. In this instance, I would change the bars for D7 - G to the key of G. I would then reset the key for the next section to C. BIAB allows for temporary key changes. It's under the Edit menu (if I recall correctly).

MY SONGS...
Audiophile BIAB 2025