When you have your gear connected, the command tab on the right side of the screen will give you access to see the focuser position and also command a goto to a specific position or step the focuser in and out manually.
If it starts at a reported position of 0 every time and that is fully racked in then that is pretty easy. Once you have it in focus, note the position of the focuser. Next time when you start it up you can go in after you have connected the gear and command a move to that position. That should get you close enough to start a run.