This is maddening! I created a few buttons, set the "Use Activates" (and Toggle) flag, set all outputs to "OnPressed", compiled, started a local server, set "tf_allow_player_use" to "1", bound f (and a whole bunch of other keys) to "+use" (bind "f" "+use") but nothing happens. NOTHING. The funny thing being that they worked just fine a few hours earlier. But now after mapping some more (and not changing a single thing about the buttons) they don't work anymore. After ticking the "Damage Activates" flag the buttons work perfectly when I hit them with a melee weapon or gunfire. But I need them to only work when being "used". Does anybody have a solution to this?