HoMM3 HD is a mod (add-on) for the game Heroes of Might and Magic 3.

It seems that the panic template on this version is not the original one. On the original there is a big block between each players 2nd zones. Any chance this could be changed?

Possibility to change the template of random map generator was added in Heroes3HDSetup.exe utility. You can add a template by creating the 'HiRezData\Templates' folder and placing RMG.TXT there. Accordingly you can delete a template from the list.