How to populate a Dashboard List Box referencing WFText4 but the UD dim may vary across Workflows?

As the title suggests, I am trying to populate a dashboard list box that references the Workflow text property regardless of the dimension being used. I'm able to populate the list box using a single dimension, meaning a UD3 member is populated on the workflow's WFText4 property and a member list parameter uses |WFText4| to pull it in. How would I get this to work if the Workflow text value is not always UD3? For Example (both workflows will be using WFText4): Canada Workflow A needs a UD3 Member.Base to populate in the list box when they run the dashboard in their workflow but Canada Workflow B needs a UD6 Member.Base to populate the list box when they run the dashboard in their workflow. Please let me know if I can provide more context.