Tom,
I just tried Alex's method and found it works for any placed drawing; detail, section, or plan.
It's even smart enough to allow separate reference for different frames from the same plan view. As with enlarged plans for example. (I'm not using detail windows for the plans. They are plan views with different layer and scale. The detail window explodes the plan, which I don't like.) I put the autotext gibberish in our old, non-window-making detail marker object and it worked.
Alex, thanks for the great tip. I missed it when you first put it up. We should be able to point at any drawing from anywhere, object, text, list... Turns out you can, behind the scenes. GS, please finish developing this functionality.