And if talkgroups change or some massive change occurs one is stuck where they are at with what they have? No go for persons who just monitor in my opinion. If that's it then your sol when changes occur which they do. As for actual users and such these radios are decent.
If you have completely start over that isn't a big deal just takes time. But to be locked as is and a system changes massively or even dispatch and secondaries change you might as well just kill or stun it if you can't change anything since you won't hear anything.
You can always build a new file and re-program your radio, yes.
I wonder - can you save a copy of your codeplug just BEFORE clicking the RX Only checkbox? And then in the future, if changes need to be made, open THAT file, make any changes, save again, then click RX Only and re-program? That way, the file saved to the PC and maintained does not yet have RX Only checked, and so has not yet lost the ability to edit further?
Finally, everyone should note that we have only heard of a few people even affected by this issue where a system administrator is disabling radios with a Radio ID of 1. While it is no doubt a real issue for some, I have never encountered it. My KNG and KNG2 radios have always had a RID of 1, and regularly monitor dozens of systems in Georgia, Arizona, Nevada and Southern California, never coming across a system administrator who disables it. So it seems (to me) to be a fairly isolated issue, and one that is remedied (even where it occurs) with the suggestions in this thread.
Dan