Widget Throbber... Can't set image?

Widget Throbber… The thing that goes in circles and what not.

I thought it is a bit strange that you can’t set the throbber image variables during run time. But you can get the image druing run time variables.

Am I missing something or you can’t the throbber image during run time?

Hello,

Did you ever figure this out? I’m trying to set a widget throbber image in a blue print but can’t seem to get it right. Any help would be amazing, thanks.