How to combine asset catalogs of 2 different existing files each has its own

Support Basics & Interface
1

Hi,
How do you append (or combine/merge) 2 files each has its own “current” assets already setup in different folders? The intent is to have it as 1 asset library as I start to realise I have too many different “asset” libraries and like to reduce it by merging some of them.
I tried just copy one to other folders, but the “catalogue” of the source file is missing after copied to the “target” folder as my asset library.

2

I think you can just drag them all into the main asset folder.
(edit) The folders I mean.

3

I copy the source blender file (with asset library built) to the target folder where I already have another blender file with existing asset library.
Still after copy over (drag and drop as I think you meant) … when open this source blender file in this new target folder, the original set of catalogues are all gone, only the target blender file existing catalogues remain in “current asset”.

4

Is there any update to this problem? I’d like to organize my assets in a separate file (sometimes after finishing a project), and just add that file to my asset folder. Unfortunately, this way I lose all my catalogues I set in the asset browser. Same with just having two Blend files in the same folder. As soon as I change the catalogues in one file, it changes in all of them (because they all use the same “blender_assets.cats.txt” file for storing their catalogues).

Edit: Oh come on, it doesn’t even work to have sub-folders with each one containing a Blend file and its respective blender_assets.cats.txt

What the hell?