Show Control On Page As Drilldown When Source Not FlowField

Hi,

I have written a couple of table functions for the Item table that return a decimal value. They calculate a quantity based on item ledger entries but it's a dynamic calculation that's beyond the remit of FlowFields. I have placed a control on the Item Card page to show the result of the table function. It displays the correct result but the text box looks rather ugly.

What I want is for the control to show the blue hyperlink style with drill-down that you get when placing FlowFields on pages. I've done this many a time in the Classic client - how can it be done in RTC?

Many thanks

Jonathan