Assets
Assets must be represented by a static BLOCK-entity (“BLOCK REFERENCE”).
Release 2011.A (and higher): assets can also be represented by a static BLOCK.
In order to locate an asset in a space (to populate the Space field in the Asset location), the insert point of the block must be inside the space polyline.
Only if these conditions are met, it is possible to fill in / change the Asset location during the import.