Using

Basic Usage
You can use in the systemtray either as widget or classic application. Both share the same functionality but have a different and show the last item of the history when hovering the icon in the systemtray:
The icon.
The icon
The widget is hidden if the clipboard is empty.
To display the clipboard history, click on the icon in the systemtray.

Widget
The Widget.
The Widget
Hover an entry with the mouse pointer and four icons appear which enable you to invoke an action, show the barcode, edit the content or remove the entry from the history. Use to capture the barcodes and save them.
You can search through the clipboard history by opening it (click on ) and typing your query. The results are updated as you type. To clear the clipboard history click on the icon at the right of the search field.
The Configure action in the context menu opens the settings dialog.
To disable the widget, deselect it in the General page of the System Tray Settings (D, S).

Application
The Application.
The Application
At the top of the available menu actions previous clipboard entries are shown. Selecting one of these copies it to the clipboard, from where it can be pasted into any or X application as usual.
You can search through the clipboard history by typing your query in the search field at the top. The results are updated as you type.

Actions
can perform actions on the contents of the clipboard, based on whether they match a particular regular expression. For example, any clipboard contents starting with http:// can be passed to Firefox or as s to open. In addition, if the contents matches a path, similar actions can be performed according to the file's type. ⪚, if the path to a PDF file is copied to the clipboard, the file can be viewed in .
To use this feature, just select a or path. If there is a matching regular expression in 's list, a menu will appear showing you the programs for your selection. Use the mouse or cursor keys to select a program, and will run this program, opening the address pointed to by the selection.
If you do not want to perform any actions on the clipboard contents, select Disable This Popup on the pop-up menu to return to what you were doing before. If you leave the menu, it will disappear, leaving you to continue your work. You can change the time that the menu remains for in the settings dialog, with the option Timeout for action popups under the General page. You can separately disable the file path part using the option Enable MIME-based actions under the Actions page.
Actions can be disabled completely by pressing the shortcut X.
Clipboard contents which match a regular expression can also be edited before performing an action on them. Select Edit contents... at the right of the clipboard entry, and you can change the clipboard contents in the dialog which appears, before clicking the OK button to run the appropriate action.
Pressing R shows the pop-up menu to repeat the last action which performed.

Clipboard/Selection Behavior

General
can be used to set the behavior of the clipboard and selection in .
The uses two separate clipboard buffers: the selection and the clipboard. Text is placed in the selection buffer by simply selecting it, and can be pasted with the middle mouse button. To place text in the clipboard buffer, select it and press X or C . Text from the clipboard buffer is pasted using V or by selecting Paste in a context menu.

Changing Clipboard/Selection Behavior
In order to change clipboard/selection behavior, select Configure ... from the context menu, and in the dialog box that appears, select the General page. Unchecking Synchronize contents of the clipboard and the selection makes the clipboard and selection function as completely separate buffers as described above. With this option set, the option Ignore selection will prevent from including the contents of the selection in its clipboard history and from performing actions on the contents of the selection. Selecting Synchronize contents of the clipboard and the selection causes the clipboard and selection buffers to always be the same, meaning that text in the selection can be pasted with either the middle mouse button or the key combination V , and similarly for text in the clipboard buffer.