It's in the Quality settings/preferences for the application. You can actually set your application to record 32-bit float, which will probably be better in case you have any peaks over 0dBFS. When you export the project audio, just export it as WAV, and choose 24-bit from the File Type drop-down.
You should make sure to normalize it to whatever is being requested/expected, assuming it's going to be processed/mastered by somebody else, i.e., you are shipping a raw, unfinished recording.