Lynx Distributor - Cable size - parallel cables - Question

Sizing question
I am planning to running parallel cables from my 3 phase inverts. I have read that it can fit 2 parallel cables pr. stud - up to 70mm2
Can I fit the 3X2 70 mm2 cables on negative and 3X2 70 mm2 cables on positive.
And still have 1 set of studs free for the first MPPT
like the example stud around the green arrow
Or how big cant I fit parallel 50/35/25 mm2 ???