how to connect a beamer to an acro harness

hey there,

I was just looking for a manual how to connect a beamer to an acro harness. Well I didn't find anything.
I have an ava sport harness. Is there anything I have to take care? Anyone connected the rogallo with the main carabiners?? I know its possible, but I just dont know how :D

would be thankfull for any help!

thanks

tom