Is changing the number of turns possible?

[Akmatov]

When playing a scenario or long campaign is it possible to change the number of turns for a battle?

It seems to me that the number of turns set is often too short to conduct much pre-battle recon. Certainly in a Meeting Engagement surprise is part of the scenario. But if I were to be doing a Deliberate Assault, I would have much more of an idea of what was just on the other side of the line. I'm not thinking of deep recon, but local recon where you send out a few patrols to discover wire, mine fields and some of the enemy positions - the kind of things you would normally expect a unit to have some info on.

With a few more turns, I could perform these actions and make more realistic decisions. Also, recon might be much more useful; at least, for me.