[Maya] Increase the input slots of "addDoubleLinear" Node?

bentraje

Hi, 

Is there a way to increase the input slots of "addDoubleLinear" Node? 

Currently, there are only two. 

I have 6 intended inputs and it would nice to just use one node rather than 4 nodes stacking against each other. 

Or is there a better node out there?

Thank you for your time.