I have several of the RT Systems programmers. Two of them, the ones for DMR radios, can corrupt channel memory, which I submitted to RTS as a bug. Instead of saying “Thanks, we need to fix this” they said (paraphrasing in my own snide way) “yeah, that’s really risky to try and use the features we provided.” So I no longer try to move channels up or down in the channel list or zones in the zone list, but I really do like the DMR calculator that builds multiple channels at a time by conflating talk groups with frequencies.