I have started to make modification to the PMDG B777 script to make all hardware modules (MCP, CDU1-2-3, COM1-2-3, AUDIO1-2-3 and ATC) power up at the right time as in the virtual cockpit, as this is not correctly in the script now.
If anyone take the challenge to try to make modified script that make this work, please go ahead.
My modification will take a long time, as I have a lot of other things to do at the moment, so anyone who want this function to be implemented soon should try to make the script and distribute it here.