Button from remote HA not visible in main HA

[matrix866]

Hello,
My button from remote home assistant are not visible in main one except for battery!

If i create action triggered by button click i need select device but everything coming from remote is only entity no device so I cannot select button.

I could create a binary sensor from remote HA triggered with an action by the button press and read it from main HA maybe. Is this the only way?