Hello!
As mentioned earlier in posts such as Prototype - Interactions - Event listener & ElseIF conditional, it would be really useful to have interactions trigger from variable changes.
Right now, you can already accomplish these by combining conditional statements with the “After delay” interaction, but it is extremely tedious to maintain and demands a lot of janky component work (see example of implementation in video).
Simply having “Listen for change in variable X” as an interaction would be a really powerful tool to create reusable components for advanced prototypes.