You can program all of this manually but using Win96 allows you to visualize everything that is being done. I recommend it.
Click "Get It" in this link to download the program, win96, under a free 30-day trial. You will need an
RS 20-546 cable, or if you can find an older RS 20-047 cable, that will work also. These require a USP port on your PC.
As n5ims said "Hex" (hexadecimal, or base 16) and "Dec" (decimal, or base 10) are two ways of reporting the same thing, specifically used in computer science and mathematics (in our instance we can refer to them as the programming code for numerics). If I recall correctly, the 96 will accept both, but you'll have to switch between the two. I think the default is "Dec" (at least it is in win96).
If you press "Man" then "###" (where ### = the 3 digit bank/channel number where your trunking system is programmed; for instance if you have the GATRRS Simulcast 1 Site in bank 1, the ### = 100). Then press "Man" again and your scanner will jump to "100," show you the first frequency from the Site, and you should see that an "Mo" is in the top right hand corner. Press "Mode" to rotate through the modes (AM/FM/MO/ED) so that each of the frequencies (101-119) for that site all show "MO" in the top right hand corner. See me pic below to see that I'm in Bank 1 Channel 00 (=100).
I'd get win96 (to make your life so much easier). When you do, I can email you my A/TC file so you can tweak it to meet your needs. I've included a generic AFD screenshot from my win96 file. As you can see below the red arrow indicates the "trunking type." Even though this is not a "Motorola TRS" as they are known, the Pro-96 requires this scanner to be in "MOT" mode to receive
trunked, P25 voice. The receive mode of each frequency (indicated by the blue arrow) should also be "MOT." The green arrow shows where to switch between Dec/Hex?AFS (AFS is used for EDACS trunking systems). The yeelow arrow shows this bank is "Closed" only receiving voice on talkgroups that are programmed in. If it was "open" it would receive every talkgroup (programmed or not). This system is way too large to listen to in open mode, so leave it closed. If not you'll hear Austin Energy, wastewater, AFD, UTPD, Manchaca, Pflugerville, Austin Convention Ctr. (etc., etc., etc.,; basically anything on the trunking system is passed through your receiver).
Let me know if I can be of more help.