Block editor "in place" transparency

Does anyone know how to adjust the transparency of background objects when executing the "Block editor in place" command? I'm using Arch 2013 and I edit blocks in place to move objects according to walls and other objects not in the block. This command is very helpful to me for my use however the background objects are very tough to see as if the transparency is set to high. I get errors when trying to upload screenshot, sorry. Any help would be greatly appreciated.
Thank you in advance!

In Options > Display > Reference Edit fading intensity...

Attachment 86108

Fantastic! Fixed my issue. Thank you Blackfish, I always try the system variables first and forget about the options box! I truly appreciate the help, but hate when I can't figure it out on my own!