Thanks to both of you!! This example worked perfectly for what I need the title card to do, thank you!
If I'm understanding things correctly, variables are only reserved in the same widget / card? So, for example, if I wanted to invoke this same list of text options elsewhere, I would need to direct it to titlebutton.texts? Can I do that across cards, too?
EDIT: Also, I'm having trouble getting in-line links in fields to work? I want to link to the PUSH SRD and I've highlighted the relevant text and inserted the link with the Text -> Link menu, but clicking on it with the interact tool doesn't do anything.