Retranscribe and Quantization are both in the MIDI/Audio menu.

Rick, if I understand you correctly, you've got a bunch of 32nd notes in already and you want to change them to 16ths, correct?

If you just want to change the notes, in the Utilities menu at the bottom is "Change..." which you can then use to select Note Durations. You can half, or double, or whatever, or only pick specific notes to become other values.

If you select Rebar Music, it will let things spill over into a new measure keeping the time signature correct. So if you have 32 32nds in a measure of 4/4, if you change the Note Duration as above, it will put only 16 16ths in that measure and push the next 16 16ths into the next measure.

If you instead want to still have 32 16th notes in the measure, your time signature has to change (like from 4/4 to 4/2) as well.

I think that's what you're asking.

Thanks so much for the response, but what I am actually trying to do is to eliminate 32nds throughout the score without having to rerecord the entire score. I see quantization under MIDI, but I do not see and retranscribe option. I am trying to see if I can tell Finale to edit the score as if I had originally quantized to no less than 16ths

Well, you have not told us what version of Finale you are using, and you have not added the info to your profile (via the pull-down of your name in the gray bar at the top of the screen), so if the absence of Retranscribe is because of the program you are using, we will never know.