A possible solution albeit different from the one you wish for is to use 1 ESP device as a “master”, combined with 433 Mhz receiver. Then make your motion sensing devices run of some chip like the attiny85 combined with an rf transmitter
An esp is a “waste” of power only to monitor a PIR sensor id say 
Attiny85 power consumption in deep sleep that i dug out
3v
FREQ: 1MHz 8MHz
Normal 0.7mA 3.6mA
Sleep 0.2µA 0.2µA
You can have it sleeping until motion detected then it wakes up and transmitts.
Esp connected to wall outlet anywhere just waiting for signals.
then expand if you need some more. ESP wise you can simply toggle notifications on/off as your “arming” action