Only start polling/listening on event like click

[I-OutOfGravity-I]

Is it possible to only start polling and listening to a script when for example a revealer reveals its content, to save computing resources?

[w-lfchen]

If you can create a boolean condition, that should be possible.
Simply use :run-while within your defpoll declaration.
See also the eww documentation on this

[I-OutOfGravity-I]

Jesus i am blind, thank you :)