This is the case, in the rehabilitation clinic, each Electrotherapy machine does its own program for 15 minutes when it’s being used. Each one starts when a patient on a session, and that leads to chaos when scheduling waiting patients, since we are unlikely to know times left on every machines.

I’ve had this idea to place an button besides each Electrotherapy machine,
when a physical therapist turn on the A machine for a 15 minutes program, he presses the Button to trigger the 15 minutes countdown ( set the A Button to set a A machine timer for 15 minutes in advance). After that, the physical therapist is able to monitor all the timers on the google home hub, making more efficient when scheduling waiting patients.

is it feasible?