Stupid ceiling question

[AUGI Strangelove]

Can anybody tell me how I can control the direction that a 4x2 ceiling grid lays out?

[Dimitri Harvalias]

Revit will generally try to anticpate which way it `thinks`it should go and will place the long edge parallel to the long wall. A square room seems to default to long edge vertically.
To modify it, select one of the tile lines and then you can move, align or rotate to suit since the surface pattern is a model pattern.

[AUGI Strangelove]

Great. Thanks.