I’m moving from OH2 & files configuration to OH3 and UI generation of Items (keeping Things on files, at the moment…).
I need to have a simple button to click to send a 1 to a KNX channel and switch on a timed staircase. No state feedback, when I release, it should send a 0 to the channel.
Instead of a momentary button, you could add expire metadata to the item to have it automatically change state after a second or two. That’ll work consistently in any UI.