So back from one round of hunting in the wilds.
Lots of waypoints recorded.
But no way to organize them...just pages of lists.
Even my ancient etrex had a basic folder system.
This should be a PRIORITY item - waypoint folder management.
If I understand your question correctly, you can create a folder and then cut/paste your waypoints into them in BaseCamp.....or do you mean in the handheld itself?. Can't make a sub-folder in BC which stinks, but you can make folders with appropriate waypoints in them this way.