99% sure it's not possible. The HD edition is a complete failure by the developers; it's better to play the original Heroes + HD mod.
Is there a way to add any new gameplay features? I mean, for example, after building a market and a resource depot, add another building, something like a messenger (post office), to allow sending artifacts and/or armies to allies? (of course, the transaction should not take 1 day, but, say, several days, 3, 5, or 7. Maybe as a plugin for the offline game?)
I also read a thread about changes to combat information. For example, displaying the combat log in different colors would be interesting to see in your mod. (and a hint about how many creatures will be killed, not only when hovering over an enemy unit during your turn, but also when hovering over magic).
These are just suggestions and wishes. The mod is great, cool, interesting, and convenient. Thank you very much!
Edited: OFF-TOPIC in the message
Added after 16 hours 55 minutes
And also, I read earlier in the thread about a suggestion to make it so that you can watch an ally's battle even when not playing on the same PC; this would also be very convenient! Because sometimes there is an opportunity to play over a network or on one PC, and you have to choose a PC because you don't want to sit and watch the map while the ally is in battle