Moves and Initial AI

[PrinzHenrich]

Hi I have problem with move to concret direction and initial AI orders. In Meissen scenario which I preapare I made most unit to went to specific hex. It is nescessary for historic reason. In unit options I wrote number of hex and "move to hex" and ex. "3914"
Battalions and squadrons want go there where I want but marsch forward against the enemy. I made Prussians as a "very defensive prone" so they want go forward. Without result.
First I thought that is the problem - enemy! I made them as a reinforcement in 10 turn so my troops could retreat in good order before someone will temptation it. And so what? Only one battalion - Hauss go slowly to good place. Rest wait for enemy! Why?! I don't know what I should to do to do it good. Please help!