Sorry for duplicating - I found out too late that this post should have been here in the first place.
The posts in this thread point to several problems. One is that the Hotlink and Xref management tools partly duplicate each other in a somewhat confusing way. They should be merged (the tools i mean) and just give you different options depending on the requirements of the linked file type (2D/3D/pln/mod/dwg etc.)
Another one is that you must treat the different options (Hotlink-AttachedXref- OverlayedXref) differently. The previous posts don't all specify the link method used when the layer/edit/detach problem arises.
To me, it sounds dangerous to be able to edit an XREF, since it might be attached to more than one file. If at all possible, it should be surrounded with all kinds of warning dialogs etc. And if edited, the original should be locked form editing by others.
Is this behavior in any way dependant on HOW the xrefs are linked?
Hotlinked plns and hotlinked module files behave differenty
Attach - is a closer Xref link to a 2D dwg/dxf file. All nested XREFs come in too, as well as layers, while
Overlay - is a more distant link to a truly external file. With this link, in my view you should not be able to edit the XREF unless you open it ffor editing first. And I also think this kind of link should not bring in the layers of the external file, and when detached, no trace of it should be left.
An issue here may be the fact that Archicad caches a copy of the hotlink/XREF in the master file, regardless of link method. If the programmers don't keep them protected, it's easy to start editing the cached copy. What happens then?
How does Archicad8.1's XREF handling differ from Autocad? (and I only want release version info).
And finally: I think external reference file management is one of the few areas in which Microstation (for 10 years and still) excels compared to Archicad, Autocad and all others. I think Graphisoft should ttake a good look at it. (I've sent this wishh tto the wishlist several times, i think).
AC4.1-AC24SWE-25INT; OSX11.5; MP5,1+MBP16,1