Studio’s tools have this functionality:
I would like to grey out some of my plugins that are selection based if the selection is incorrect. However, we aren’t able to do that at this point in time. The best we can do is toggle the selection box:
Last I checked, the plugin interface to the studio was completely FUBAR. I made a thread a long while ago about it, and some developer wanted to revamp the API completely. More interest in this might rekindle that project.