At the endpoint "/setting-store/" (e.g., "https://localhost:5434/flexi/testovaci_2/setting-store/"), the web interface contains all settings (for the currently logged-in user).
The process of transferring settings is as follows:
While logged in as the desired user, export the settings to XML or Excel.
Log out of the original user account and log in to the user account to which you want to copy the settings.
At the same URL ("/setting-store/"), import the file exported in step 1.