surfaces and surface edges numbering order/sequence

Hello, I am quite new to GH, well, this is actually the first time I am using it, and I got a bit stuck (I am not sure this is a silly question):

I have 2 surfaces:
1. a "original" building elevation
2. a "deformed" building elevation

I want to compare the deformation of my façade panels from the "original" surface to the "deformed" surface. However, when I split my surface into panels, the panels numbering do not match on the 2 surfaces, so I cannot compare them.

In order to compare the 2 surfaces, I need the panel numbering and panel edge numbering to match on both surfaces. Is there a way to make the numbering follow the same order on both surfaces (i.e. from left to right and from bottom to top) ?

Also, once the above is sorted, I would like to know if is there a way to make the numbering on the surface edges constant on all panels, for example:
• Top horizontal edge is always number 0
• Left vertical edge is always number 1
• bottom horizontal edge is always number 2
• right vertical edge is always number 3

and finally, my file seems very slow, it takes a long time to execute every time I connect a new wire, sometimes more than 10 minutes, I am assuming this is not normal? anyway I can make it faster?

thanks!!!