Device IDs: the MIOS device ID and the application specific device ID doesn’t have the same function. The MIOS device ID is used to address MIOS specific SysEx commands for code up/download and debugging to the core. This ID can only be changed in the ID header of the PIC (see the bootstrap loader page) or with the change_id program (see MIOS Download section). The application specific ID can - if available - mostly be changed in the main.asm header, with special SysEx commands or within a menu provided by the application itself (e.g. MIDIbox64/64E/MF: SysEx Menu, MIDIbox SID: CFG->Dev)
however, seems that it makes sense to integrate the same AUTO_ID feature like in the MIDIbox SID, because it seems that this seperation (which sometimes makes sense) is too confusing for users