it’s a very flexible environment, you could control/sync 4 devices easily, worst case scenario doing it simplest would be the loss of two internal sequence tracks, you’d use the CV, the FX and Tracks 3 & 4 to have maximum flexibility with Gate positioning
You could sync a device with no loss of track using a clock out, you may also be able to get creative by using pitch info as a gate source, (it’s all voltages after all) - it won’t be as flexible, but there’ll be ways to get more things out of the two ‘spare’ tracks
I also imagine you’d pretty quick stop limiting the use to being just for gate signals as it’s so much more fun/flexible, there are lfos and envs to throw at the cv too, there’s also a value lin mode which lets you mod/send out voltage in a very flexible way