how to clear residual garbage in a stack?

[Neville Smythe]

Thanks Phil, I knew there had to be a command. Of all the synonyms I tried I got close with compress ;-)

Turns out a stack of  mine used by national organisation for 20 years had bloated from 3MB to 9MB.

> Use "compact stack" to get rid of space formerly used by now-deleted 
> objects.

 
Neville Smythe