Prerequisites
You are in the initial screen of the Knowledge Warehouse.
You want to add folders that you access regularly to your Favorites.
Inserting Selected Folders from the Entry Structure
To add a folder to your Favorites from the displayed entry structure:

To find a folder in the entry structure, use the
Inserting Folders
To add a folder to your Favorites from the Knowledge Warehouse:
The Find Folder dialog box appears, in which you can enter search criteria:

SAP recommends that you use the technical name for the search since it is the fastest.
Result
The selected folders are added to your Favorites.