HDS Waypoint?

I have been organizing my waypoints on my computer and have them loaded on my memory cards. On the computer I have them in folders by lake, each waypoint begins with the bay abbreviation then a number.
Does anyone know if the HDS will open a folder on the memory card? For instance a folder for Lake Barkley and one for Kentucky Lake. My guess is no, but it would be great if it would.

You can load (import) waypoints from different usr files from the memory card. However,this will merge with existing waypoints in the core memory. What I do is delete the core memory (delete all) before I import a new file from the memory. Sometimes I let them merge. You can also purge existing waypoints with the purge feature. I have 10 different .usr files at present on my memory card. I delete all the existing waypoints from core memory and import from memory card my desired location waypoints. Good tools.

Thanks Cane

I haven't been out but once with my HDS and since loaded my way points from my hand held to my computer and memory cards. It would've been handy to be able to open a folder and choose the way point. What are the steps to get to the "purge" feature?

Thanks