Here’s partial results from last nights maxscript silliness.
QuickCollapse is a maxscript Struct with a few functions to speed up collapsing large numbers of objects, it provides feedback in the listener window so you can see progress as it goes.
Run script will trigger ‘CollapseSelected’ on your current selection. there isn’t much Error Checking involved, so filter your selection for meshes, and remeber that it SHUTS UNDO OFF for the collapse so that we dont have RAM overruns on large objectsets, so save/hold first eh?
EDIT 2013: Here’s an update with UI and a few other useful mesh cleanup functions: DOWNLOAD