I do hope this is related ;)

When I modify a texture for movement modification (in descr_battle_map_movement_modifiers.text in data folder) it works to slow down/speed up troops (in say a custom game) for the texture modified.

No problem there.

However, if I pull up a location from the campaign map in the Battle Map Editor and paint the texture so modified onto the battlemap it has no such effect on troop movement.

How so?

I was thinking that only the APPEARANCE is modified in custom maps - the real texture drawn from the camp map still exists underneath.

Probably way out there - but has anyone an answer to my newbie question?