2) By Default the /System/Models/Basis/Asset/Asset model will be selected. Choose the model as applicable.
3) Drag and Drop the files into the drop zone or click in the drop zone to bring up the file browser to select your files.
4) Wait for the uploads to complete and hit OK.
Note: When using the /System/Models/Basis/Asset/Asset model an incorrect workflow could be assigned. It is best practice to always assign a proper workflow to your asset(s). You can find the steps to add a workflow here: Add Workflow to Existing Asset