Hi Digitalvoid, Some more possibilities for you to consider: 1) The daemon is modified to check more than one file. That is, to accept files like smscon_config, smscon_config1, smscon_config2,... etc. found in its directory. I could add a button in the editor "Add new IMSI" which will basically move/rename the current config file up to the next available slot. The user then needs to change the SIM and during booting a new config file will be created automatically. 2) The daemon is modified to check multiple lines in the config file. In that case the add button will append the new IMSI in the file.