Preferences

Choose cache folder* – appoint an alternative cache folder on a different disk. The above line shows the current cache state for the chosen drive, displaying the amount of space used by cache and the storage capacity of the present drive.
Сached files lifetime – cached files are automatically deleted once the time set in this option runs out.

Open at system logon – let MacDroid start automatically when you log into the system.
Auto mount at application start – automatically mount all your connected Android devices when MacDroid starts. If this option is unchecked, you can mount the required devices manually by selecting them in the list and clicking the Mount button.

Show mounted drives on the desktop – allows displaying icons for the mounted drives on your desktop.
Use short device name in Finder sidebar – allows displaying abbreviated names for connected devices.
Make drives visible to other accounts on this computer* – makes all the mounted drives visible to all the users of this Mac. If this option is disabled, the drives are visible only to the user who launched the app.