Mount
Show a remote as a drive on your computer, so any app can open the files.
Mount is the operation for programs that need to work with the files directly, rather than for keeping a copy of them.
It makes a remote or one folder of it appear as a drive on your computer. Finder, Explorer or any application opens the files as if they were local.
Under the hood, rclone fetches each file from the remote when an application asks for it, and writes changes back.

Setup
Choose the paths
Open the toolbar and type mount. "Remote Path" is what you mount, a whole remote or one folder; "Mount Point" is an empty local folder that becomes the drive.
Set the options
Hover any option to see its explanation. The full list is on rclone mount.
For example:
vfs_cache_modedecides what the drive can do:offstreams and is mostly read-only for apps,writesmakes saving work,fullalso keeps read files on disk.allow_othershows the drive to other user accounts (on the same machine).volnamenames it in Finder or Explorer.
Start
Press "START MOUNT" and then "OPEN". You'll see the mount point open and the drive contents inside.
It stays up while Rclone UI runs and ends when you quit it.
If the mount is there but an application cannot save into it: set vfs_cache_mode to writes or full.
Stop it
Active mounts are listed in the toolbar, each with an "Open" and a "Stop" entry, plus "Stop All Mounts". Stopping asks for confirmation, since an app with an open file on the drive loses it.
Mount at startup
To have a remote mounted every time Rclone UI starts, open the toolbar and type "Auto Mount", or go to Settings, then Remotes, and open the remote's configuration: the auto mount settings are there.
Video
For info on the rclone mount CLI command, see the CLI docs
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