Module Design Help

Hi all,
I am Antonio Pinar from Spain. I am actually involved into the Beyond the Volga project as playtester. Actually I am trying to improve an early module version for the game (created by myself). I want to add a feature for counting hexes taking account the different terrain features (like rivers, roads, railroads… etc) and enemy ZOCs to calculate command range. I saw something like I want to add to my module into the module “A Victory Lost” (AVL) for calculating pieces movement and supply range.

I have some experience mounting “Basic” VASSAL Modules but I´d like to improve my skills beyond and I think I need some guidance… so I beg your help here (if you have the time and room).