Thanks to carol to ask same question i have and also thanks to Drew to answer this.
Just in this moment i need this information because i want to expand a customer X460 Switch....
Achieving this goal there are several steps needed:
+ power off to insert X460 Stacking Modul :-((
+ enabling stacking an that switch - but THIS erase the config -> hardly for remote workers
+ coverting existing standalone config (previously saved) to stacking config
+ loading config = reboot
+ checking if config is 100% complete converted because converting tool (non_stacking_config_convert.py) is NOT official supported :-(((
If these steps are made easier in future switches networks admins life wil be easier than today.
If standalone switch config was converted before via python script and stored on the switch. The rebooted stack-enabled switch (=Slot1) do NOT loose config (like in previous versions) it have a valid config and is still reacheable via SSH.
So doing this step remotely is a great enhancement (whithout the need of serial console access).