Inserting reference variables into text

Summary

I'm having issues inserting reference variables into text

Content

Hello,

I have a few reference variables that are driven off simple formulae in an Excel based Supplemental Doclet.  They update fine on doclet check-in and appear when I look at my variables list.  I have no problems inserting these into Excel cells in my Supplemental Doclet by when I try and insert them into text (replacing typed values with reference variables) I click the insert arrow (highlighted in screenshot) and nothing happens, I don't get an error and no value appears in the text.  I've also tried doing the same think using range names in my Supplemental Doclet and created