Okay, so this feels really advanced and complicated, if it is even possible...

I'd like to build a T-table with the first column x-coordinates and the second column y-coordinates. I'd like the first row to be a randomly-generated pair (x1,y1) and the last row to be a randomly-generated pair (x2,y2). I'd like the in-between rows to be x1+1, x1+2, x1+3, etc up to x2. But the number of these rows, as well as the contents therein, vary depending on what x1 and x2 are. I may be totally dreaming that it could be this customizable. But now I've got the curiosity bug to find out.