Garmin Montana 600 - Organizing Waypoints

Any Montana 600 gurus out there?  Anyone know how to organize waypoints into folders for easy access.  For instance...I have tons of waypoints but they are all in either alpha or numerical order by title.  I would like to be able to create a folder such as Lake Name and date. Within that folder all my waypoints for that date are organized for easy access.  Any suggestions?  I did read through the manual, scoured youtube, and googled my a$$ off but cant seem to find an answer.  To make it worse, I can't even find a definitive "no you can't accomplish that with the Montana 600".  I've called Garmin and they said they "think" it can be done they just don't know how.  They were very pleasant and definitely trying to help, but in the end they couldn't figure it out.  Help!