You can append just 1 talkgroup, which sounds like what you want. However, doing so will add every SITE. Now if you have deleted sites previously it will just re-add them.
Don't delete SITES - just avoid them.
That's not always the case.
I just tried this again, to make sure nothing has changed in Sentinel.
There is a medium sized regional system in my area, that includes a number of city & county agencies in the DFW metro area.
North Texas Interoperable Radio Network (NTIRN) Trunking System Profile
www.radioreference.com
I can select, and append (in Sentinel) a single talkgroup, from the main database, to a Favorites list. That appends the single TGID, plus all of the sites for the system. Then, I go into the appended system & delete all of the sites except those that cover the talkgroup I appended.
Now, if I go back to the main database in Sentinel, and select a different talkgroup, then append it, it only appends the second selected TGID.
This only works if you
do not change the name of the system in the list where these were appended.
The full name for the system, in the database, is North Texas Interoperable Radio Network (NTIRN). As long as I do not change that, it will allow only selected talkgroups (or departments) to be added by appending.
However, if I change the name of the system, as it was appended, that changes what happens. When initially appended, the name of the system, in the Favorites list where the selection was added, was the full, long name: North Texas Interoperable Radio Network (NTIRN)
But, if I use the Favorites Editor to change this to something shorter, such as just the system's acronym, NTIRN, and try to append something additional, then it appends the full system, with all the sites, into a new copy of the system, not the first one with the shortened name.
Or use
Proscan. Yes you need a
RR premium subscription to utilize the RR web import service (the best things in life aren't free) but Proscan allows for greater selectivity so you don't need to avoid or delete anything you don't need. Only want one talkgroup and one site on your system? No problem. Welcome to the RR forums
As noted, that's the best way to handle it. Using ProScan (or the ARC software), and a Premium subscription, you can import only what you need, whether it's sites, a department, or a single talkgroup, regardless of any name changes.