thanks for the feedback and the workaround. Having said that I also have to say I am perplexed to see Adobe did not yet implement a 'Sync-function' for the layout. As you work on a book for hours tweaking the design of say 100 pages and want to continue with some ideas another time another place, the last thing you want to do is mocking around with external harddrives and backups. I'm in a train traveling home and want to go back and forth on itirations of a book on my diffrent devices. Is'nt that the whole idea of Creative Cloud? Looking at the workaround you pointed me to (from 2016) I understand the problem is persistent. Its a bit disapointing its not resolved yet.
Thanks Fred for the reply. Arrh but Lightroom Classic was designed about 2005 when the Adobe Cloud did not exist. And even with upgrades, it still does not have full sync features. Who knows if it ever will?
So we have to live with the limitations and work-arounds, but I do see your 'point' very well (as another user).