I believe that would do the job but remember it will prevent anything beginning 0300. So make notes on what you are doing so that if needs be you can put it back. However when you change it, you don't have to worry as it will only be in the running memory, so a simple system reset will clear your changes. With the IPS you have to save the changes to Flash memory to lock them in. If you are using matworx it will prompt you to save to flash when you go to disconnect, if you aren't sure just exit without saving, then when you are log back in and as you log back out it will prompt you again. If you are doing this from a phone the command to save to flash is EC6 if you don't have a manual post back and we will give the details you need. A word of warning though as many get caught out by previous programmers not doing a flash backup Ideally you should do a flash backup before you make any changes or you could find you recover to a point way back in time and things no longer work the way they did before you started.
Let us know if you get a good result