ronald -
to create a layer link, you first go to your target layer where you want the data to appear, then > VIEW >Create Layer Link
the next dialog box will ask you which layers you want to link into the target layer, and whether or not to project 2D info. after you select whichever layers you want, click ok, and those selected layers should appear in your target layer, at whatever scale you have it set at.
to unlock the layer link, you simply select it, go to EDIT>Unlock, and the link will be unlocked and movable and/or rotateable. (that is about all you can do with it) to delete the link, you simply select it and hit the delete key.
the info in the linked layer will have all its 3D characteristics, as well as 2D (if you selected the check box initially).
hope this helps.
good luck
------------------
rich carrroll
carrollarchitects