P: Sync only selected collections in different catalogs.

In Lightroom Classic, I’ve been working in the same catalog for years, and now it contains over 50 collection folders with more than 50,000 photos. Since the more photos there are, the slower Lightroom gets, I want to create a new catalog just for this year. However, I don't want to download all the old photos to my computer — I want them to remain on the server.

The idea is for Lightroom Classic to have an option where, when you click on SYNC, a window pops up asking you to select which collections you want to download to your computer or mobile devices.

For example:

Select collections you want to download to this catalog

Download all photos from all collections to this catalog

In other words, pressing SYNC shouldn't automatically start downloading all photos from the server into the catalog, which can take days.

The best solution would be: display a list of collection names, each with an icon indicating that the photos have not been downloaded yet — only the collection names are visible. If the user wants to download photos from a specific collection, they could click a small download icon next to it. There should also be an option to Download all photos from all collections if needed.