Button and Shelly Plus ?

do you refer to Shelly Button1? yes, it is possible to control a Shelly Plus1 or Plus 1PM with a Shelly Button1..

Important: due to the new digest authentication Shelly Plus1(PM) must not use a password protection because Actions / Webhooks with digest auth is currently not supported from Shelly Button1.

ah ok. the answer is unfortunately no, the new plus devices dont fit in the button case.