Question about Garmin eTrex 32x

BaseCamp is a free tool from Garmin that allows you to easily exchange gpx tracks and waypoints bidirectionally between your computer and the eTrex32x and to manage tracks and waypoints on a computer.

Yes, you can load GPX data, as well as free OSM maps etc. For me, one of the best outdoor GPS devices.

No problem at all. The eTrex 32x can be connected to a computer or mobile phone via USB. Up to 200 gpx tracklogs and 2000 gpx waypoints from these devices can be downloaded and displayed on the GPS or downloaded from the GPS to these devices.

Yes, that is possible. I use BaseCamp for this. But it should also work directly by connecting the eTrex to the computer via USB, opening the Garmin folder and copying the gpx file into the GPX subfolder. When you restart the Garmin, this file should be visible under the Track Manager menu.