Group drives by storage type: When turned on local disk drives in the This PC folder will have separate groups for HDD, SSD and Other (unknown) - when off, all drives will be listed as "Local drives".
Include Files Stored on This Computer: This option adds a group to the This PC folder which contains links to the document folders on this machine (your own personal folder, and the shared documents folder).
Include Media Servers: Includes DLNA media servers found on your network.
Show empty disk drives: If this option is turned off, removable disk drives will be hidden from the list of drives if they are empty.
Sort drives by name instead of letter: By default drives are sorted by drive letter (C:, E:, L:, etc). If you turn this on, they will be sorted by their label.
Refresh drive space on load: Forces a recalculation of drive space for each drive when the folder is loaded.
Low free space warning: The bar graph that Opus shows for each drive to indicate how full it is changes color when free space drops below this level (default is 10%). The actual colors used can be configured on the
Directory Opus Colors page.
Show drive labels as: Lets you choose how drive labels are displayed.