Setting default video output/monitor

I've got in my laptor installed burg and dual monitor configuration.

The problems appears when i turn on the laptop, because the brug is displayed only on my laptop's lcd, whereas i want to be displaid on the conneced via hdmi external monitor. There is not a problem to switch the output using "fn + F5" comination to external monitor, but i want it be done automatic/default to set external monitor as video target.

 Is it available in burg to set that?