MM7DBT Codeplug Editor

I have downloaded the software and read from my radio. When I access the ZONES/CHANNELS tab I can rename the zone and the channel. I can change drop downs inside the channel line. However...when i change the frequency in the channel line and move to the next row it does not save and reverts back to the original frequency from the stock code plug. I have tried creating a new channel and can do so, but I am still unable to change the frequency. I hope I am missing something very simple but I can not figure it out.

I do need to get it to autocomplete and perhaps auto-confirm.. however if you press enter after entering the frequency then it should save and update.
Just be sure to enter the full frequency in hz. i.e 433000000 not just 433.. etc

Thank you for your reply. I found my problem was actually trying to put the decimal point in the number. Its just the actual digits if anyone else has that problem.