The model offset position and orientation are stored in a special site in the Application Data World, /FABAPPDW. By default the position is at E0 N0 U0 in world space and the default orientation is "Y is North and Z is Up" in world space. This is usually locked to prevent you from accidentally modifying the offset position that has been agreed with the AVEVA Bocad Steel user.

You can modify the header details by inspecting the chosen header and pressing Edit. Press Apply to update the header data or Cancel leave the header data unchanged.

To create a new header block, select New header… from the drop down list.