Merging Gateway Configurations


Is there a way I can merge two gateway configurations. I have two different servers running to different SQL Bridge Projects. I would like to have a 3rd Server that is on Standby with both configuration and projects so they will be ready in case one of the servers fails, I would like to save time configuring all the devices (24 in total). Is there a way that I can restore and merge gateway configuration. I know I can import both projects but how about my devices.