Can it be done

[Justfly]

I have 3 identical dual line kites I want to stack and here's the catch I want to add a single line delta in between the 3 kites attached similarly..... Can I do this successfully? 

[frob]

Assuming you're attaching them frame to frame, sure you can attach them. No telling how it will affect flight dynamics, though.   Assuming it's relatively similar in shape and size, it probably won't throw things off too much.