Hi urban,
It sounds like you would be interested in having variables set the value of your widget’s font size from within the rich text editor, so that a variable value of “9” has the font size set to “9”, for example. Is this correct?
Axure RP does not currently include a feature for a variable’s value to directly impact a widget’s font size from the rich text editor. However, I would be happy to file a feature request with our teams regarding this!
In the meantime, if you are interested in using variables to manage the size of your text’s font, global variables could be used in a slightly different way. You could make it so that when an event, such as an OnDrag event, occurs and the global variable equals “9”, a set text action fires, and sets the rich text of the target widget to have size 9 font styling. In this way, the font size is dependent on the variable, but the variable’s value is not used for choosing the size of the font within the rich text editor.
I hope this helps!