How to organize indices with a simpler way

Hello guys!

I want create a triangulated surface and I made a definition for that. However I have found a way that I think that isnt the best one in order to handle my data ( points ). It would be really appreciated if you could help on how to organize my data in a case like this.

Thank you in advance!

new (18.5 KB)

Is this what you want?..

I think yes! Could you please post your definition?