Append a New Folder
The contents of a new folder may be appended to an existing folder tab. To append, drag and drop the folder on an existing tab. The hint text "Append folder" will appear in the drop zone.
Merge Existing Tabs
Two folder tabs may be merged together by dragging one tab and dropping it on another tab.
After a Folder Append operation, the header of the target tab will be expanded to show both folder names.