Mark reaction as used

[psychocpv]

Is there a way to put on an effect that marks as used a reaction on the combat tracker?

[Trenloe]

Use the "Reaction?" check box in the Attack section.

[MaxAstro]

There's no way to have a spell effect that does it automatically. You can mark the spell as taking a reaction to cast, but that won't automatically mark the combat tracker button. Would be kinda nice if casting a reaction spell did mark your reaction as used, but that's not how it currently works.