Need to create multiple block attributes dependent on one prompt

[bcsurvey]

Seems like a simple operation, but I can't find it in the help section:

I'm somewhat familiar with block attribute definitions, but I can't seem to find a way to add attributes that are dependent on an EXISTING attribute, so that I don't have as many prompts. When I copy the attribute in the block editor, it adds an entry to the attribute list for that block and thus another prompt upon inserting the block. For example, I'd like to end up with a block that displays 5 variable attributes, but for which only 3 prompts are required, since the remaining 2 are dependent on one of the three prompts. Can this be done?

Thanks

[Anonymous]

See this post, I think they were trying to do the same thing you are trying to do. Hope this helps you.

http://discussion.autodesk.com/forums/thread.jspa?threadID=771475&tstart=250

[bcsurvey]

Yes, 3 and a half years later, but the link above doesn't work anymore.  The gurus at Autodesk in a frenzy to continually change the forum sites are earning their weight in . . . something.