I have to agree with Gary that this is a UX consistency bug. Everywhere else in Archicad that I can see, if you drag a copy - elements, View Map entries, etc ... the copy is what is highlighted/selected in the end. This is also the way Windows File Explorer works. The only place I found (in a quick check) where the original is selected after a drag-a-copy operation is MacOS Finder.
Even without the other examples, all tabs in Navigator should behave the same IMHO... if View Map selects the copy, then so should Layout Book.
Consistency should be paramount in the UX IMHO.
One of the forum moderators • AC 26 USA and earlier • macOS Ventura 13.2.1, iMac Pro 10-Core, Radeon Pro Vega 64