You can export what you can record, which is an 8 bar max loop. Export is a non-real-time function so nothing you have to do in realtime, will be exported.
Complete automation of everything including mix and key changes, is something those of us who love Figure have been asking for fairly regularly.
If you can handle an effective resolution of only 1/8th notes, try setting your tempo very very low and play everything at double speed. You can essentially get 16 bars this way.