Owned assets - importing only select items

I've searched thru google and the forum search.

I have a 4.6 GB asset that I purchased awhile ago. Great pack. I want to be able to download only one prefab out of the pack. I tried just selecting the prefab, but the whole package came in...taking awhile. It's a nightmare searching for every mesh, texture, material. And then sometimes you didn't manage to grab a shader or another attached item. And if the prefab I select has several mesh parts...

https://assetstore.unity.com/packages/tools/utilities/unity-visual-search-104059 searches all assets, but I just want the ones I already own.

How can you import just one item (into Unity from the asset store) with all it's info (mesh, texture, material) from an owned package?