Can you check line of sight

[jefferobertson]

I know that if you select a unit and then place the cursor on an enemy unit the game will tell you if it is in line of sight. Is there a way to:

Select a unit and then select a point on the map to see if than unit has line of sight?

Select a two spots on the ground and see if there is a line of sight between them?

[PuppyFiddler]

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