Since your a premium subscriber, download the free program, Freescan from the link at the top of the wiki page in the link below, download and install. If any windows popup comes up, just let it run. The main software I use.
Only thing is this software cant do is the DMR/NXDN formats for which highly likely isnt enabled in that radio.
Then take a look at the four videos near the bottom of the wiki. These were made before the 325P2, but program the same way so disregard anything about serial cables.
When you go to upload to scanner be sure to have the software search for the COM port always as is the case for all programming software.
wiki.radioreference.com
When you get the info for each areas, just click on the site and select a different number for each area.
Also at Site Type in software, set it for P25 Standard.