Step 1: Click the "File" button located at the top left corner of the interface.
Step 2: Hover your mouse over "Product Database" in the dropdown menu, then select "Product Catalogs."
Step 3: Click the first yellow folder icon to import a local catalog file to the cloud.
Step 4: Press the "Sync" button to upload the catalog to your cloud storage.
Step 5: Click "OK" to switch to this newly uploaded catalog.