Hello,
First of all, i'd like to apologies for all the mistakes i'll make here, I'm french 
I've got a AP7921 which commands outlets for my ender 3 pro and differents other things around it.
Is it possible to create a button which can send commands such like ON 1 after login and "password -c" (I've found that in this doc https://www.se.com/ww/resources/sites/SCHNEIDER_ELECTRIC/content/live/FAQS/156000/FA156163/en_US/PDU%20command%20line%20interface.pdf?_ga=2.93043805.1939357151.1599809679-28467209.1599809679 )
This could help me to switch on/off my printer for exemple.
Thanks you
Best regards,
Jean-Michel