File system for points

[Keta]

I was given several sheets of my late brothers points of the area I fish. A lot of the data is Loran C TD's. I've found an easy NOAA conversion tool but you can do it on the TZT3 also.
Anyway
I'd like to keep these points separate from my points. Have them in a folder. Is this possible? IE have separate folders of points et cetera that you can elect to display or not display. I've gone through the manual several times tying to figure this out but I'm missing it if it's there. Screen gets kind of cluttered with too much displayed.

 

[Johnny Electron]

Use a USB Stick and save your points. Then delete the points from the machine and input in your Loran numbers (which will store then in GPS locations) then save them to the USB stick under a different name. Delete the points in the machine and import your original set.