if yes: Default Channel? (not working if nothing connected upstream) or Private Fallback-Channel? (widget gets disposable, downstream nodes resubscribe when switching between In- & Private Channel)
if yes: in Immediate mode we can express: please Update the node before reacting on Channel. Otherwise it's a bit unclear if the reactive foreeach, the holdlatest or whatever sink is called before the SetValue via the widget.
[ ] Bang Output
cool? overdone?
should it only bang when the particular widget got touched by the user? (The Value output changes also when the change came from the channel)
[ ] Button has a Unit Channel input. Do we like it?
[ ] should the State Output of the widget be "of type Channel"? This would turn Channel into an interface IChannel.
IChannel
.