biner to biner; is it safe?

quick question for you folks here. I attach my split-tail to my delta with a locking biner. Could I then attach my "up" rope to a biner that then attaches to the split-tail biner? Otherwize, between my climbing rope and my lanyard there is not much room on my delta.

I do not actually visualize the problem but looks like that is what everyone does already.
Please Take a picture and post it so we can see what is the issue better.

I was told not to link carabiners like a chain.

Looks like you have the main line is the Red rope with a blue color split tail and the yellow/orange is a secondary lanyard in some type of prussic knot that you are using while resting on the branch or while making a swith over. (?)
Looks like a very crowded place with lots of potential for problems with binner locking into each other and you are unable to open their gates, etc. The binner to binner is not a problem in itself but you could think of ways to simplify the two set ups so they so not get into each other and keep your delta not so congested with stuff.
Some of those binners are redundant and you could re-arrannge your lines for simplicity and efficiency.
One alternative is to tie your lanyard to the side of your saddle loops (the Life safety rated ones) (Not the gear hanging ones) That way you will not have all that gear in front. Hope this makes some sense.

If you're having issues with a crowded delta, do yourself a HUGE favor and buy a small Petzl paw. The one with 3 attachment holes. Problem solved.

Ron

Thanks for the info guys. I'm definitely looking at getting the paw. I just want my lanyard to be connected at the delta so I could hang from it too if need be. It did get pretty crowded with four carabiners on the delta. I found out that biner to biner is more of a rock climbing issue.