The title is quite long but I’ll request for a complete list of variables command (not the variable stuff, I mean commands) on the wiki because I think not all users know how to make use of variables on the software. It’s just a request because the knowledge written in the Wiki article is pretty insufficient.
Perhaps a video on how to make use variables will be a great help for others. Thanks for hearing my feedback/request.
I don’t understand your question : all the conditions/actions are shown when you want to add one so you can see Variables related conditions/actions. This is the same for expressions : all the expressions are listed in the expression editor (and even the same for text expressions).
Did you notice the summation symbol (or txt symbol) at right of the expression writing area ( when editing an action/condition)? If you press it the Expression Editor (or Text Editor) will be opened, and depending if the expression is a number or a string, it will show all these expressions