TrayWhat a file shelf actually holds
A temporary file shelf for Mac gives an unfinished task somewhere to wait. You might have found the right PDF but still need two images, or gathered everything before opening the app that will receive it. The shelf keeps those working files reachable while you finish deciding.
In Tray, dropping a file creates a card that refers to the original. The file stays in its existing folder. A PDF from Downloads and an image from a project folder can sit next to each other without first being copied into a shared directory. A group of cards is therefore a working selection; it becomes a real folder only when you explicitly create one.
That makes the shelf useful between finding and filing. Finder still handles browsing your disks and choosing where files should live. Our Finder and file shelf comparison explains that division in more detail.
A practical sequence: collect, preview, choose, deliver
Suppose you need to send a project brief, a logo and two screenshots. The brief is in Downloads, the logo is in a client folder and the screenshots have just been saved elsewhere. The useful part of a shelf is that gathering them and sending them can be separate steps.
Collect from the places the files already live
Add the brief, then visit the logo folder, then collect the captures. You can let go between visits and open another window when you need it. Tray accepts temporary drops on the free plan, including several files dropped together; Pro also supports clusters for keeping a collection in one card. A cluster does not relocate its members.
If the same locations supply files every day, a watched folder can bring recent items onto the shelf. Manual drops are useful for gathering a specific delivery from unrelated folders.
Preview before choosing
Point at a card and press Space to preview it with Quick Look. Check the brief’s contents and distinguish the final screenshot from an earlier capture before opening a mail draft or upload form. Press Space again or Escape to close the preview.
Quick Look is a macOS feature whose previews depend on the file type. You can also select a file in Finder and press Space; Apple’s Quick Look guide describes the built-in controls. A shelf puts that check close to the files you are about to use.
Choose the files for this delivery
The collection can contain more than the recipient needs. In Tray,Command-click cards to select several, then drag the selection. Leave reference material behind when it does not belong in the delivery. This is particularly useful when a brief or logo needs to stay handy across several different messages.
Deliver when the destination is ready
Open the destination and drag the chosen files into a place that accepts them. The receiving app determines whether a drop attaches, imports or opens a file. Check that the expected files arrived, and wait for any upload to finish before treating the handoff as complete. For the window-switching steps, see how to drag files between Mac windows.
Should this go on a shelf, the clipboard or in a folder?
Choose according to what needs to survive. A quick paste, a working collection and a lasting project directory are different jobs.
| Place | Useful when | What to remember |
|---|---|---|
| Clipboard | You have a selection ready for an immediate copy and paste. | The next copy replaces the current clipboard contents. |
| Temporary shelf | You are gathering, checking or reusing files across windows. | Tray’s cards depend on the original files staying available. |
| Finder folder | You need an actual directory to organize, archive or hand off. | Choose deliberately whether to copy or move files into it. |
A shelf can hold the selection while you work out the destination. Once a collection deserves a lasting home, create that folder and check its contents. Backing up the folder is a separate decision; leaving its files on a shelf does not make a backup.
Removing a card and changing a file are different actions
Tray provides actions for both. Read the action name before clearing a large selection, especially when a collection includes originals from several folders.
- Remove from the shelf: forget the card’s reference. The original file remains where it was. This is the appropriate cleanup when you have finished using a temporary drop.
- Move to Bin: send the actual file to the Bin. This changes the original, so use it when you intend to discard the file.
- Put in a Folder…: create a real folder for the collection. The dialog defaults to copying the files and also offers an explicit move option. Copy leaves the originals in place; Move changes their locations.
Finder also distinguishes copies and moves. Apple documentsOption-dragging to keep an original and make a copy, and explains that dragging between different disks normally copies the item. See its guide to organizing files in folders. When the purpose is deliberate filing, use an action with the copy or move behavior you intend rather than assuming every drag has the same effect.
Keep the originals available, even when a card is pinned
Pin a file when you want its shelf entry to stay. Tray’s free plan supports three pins; Pro supports unlimited pins. Pinning keeps the reference from expiring. It does not duplicate the file or protect it from being deleted elsewhere.
Temporary drops expire after 24 hours by default, with the lifetime adjustable in Settings. Expiry removes the shelf entry and leaves the original file untouched. Recent items from a watched folder are a separate view of that folder, so a file still there can appear again even after you remove a manually dropped card.
A reference also needs something to point to. Tray can resolve saved references when a file has moved, but a shelf cannot recover a deleted original or provide a file from a disconnected drive. Missing files can disappear from the shelf. Keep important source files in a location you can access, and verify a new folder or completed delivery before discarding anything.
The useful habit is small: gather what the current task needs, preview it, deliver the chosen files, then clear finished references. Pin only what you expect to reuse. The Tray tips show the selection and preview controls, and the feature overview covers the shelf and watched-folder options.