scenario design - range for AI to open fire

[hippyjohn]

I am trying to set-up a scenario so that two AI controlled Panzer IV lie in long grass with a good forward view of about 25 hexes (Scenario Visibilty = 30).

I want to simulate that they have been given orders not to open fire until the enemy is within 400m or 8 hexes.

I have very little experience of scenario design, have read the game manual and Mobhack manual and I have searched the forums before posting but can't find the answer to this problem. Game is winSPWW2-CD-version 5.0 upgradeded WinSPWW2v7.11_(2014).

Setup.

EDITOR > DEPLOY > Y : RANGE set to 8 hexes for each PzKw IV

Tested Scenario.

AI holds OpFire when opponent is taking its turn until range is 8 hexes.
AI opens fire with both PzKw IV during its own turn as soon as the enemy are within their sights, Range 22 hexes.

How can I prevent the AI opening fire during its own turn until the range is 8 hexes?

Thanks,

John.