Using

Basic Usage
To display the clipboard history, click on the icon, or press V . Previous clipboard entries are shown at the top of the pop-up menu which appears. Selecting one of these copies it to the clipboard, from where it can be pasted into any or X application as usual.

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 or as s to open.
To use this feature, just copy a or filename to the clipboard. If there is a matching regular expression in 's list, a menu will appear showing you the options you have (⪚ Open in , open in ). Use the mouse or keyboard to select the option you want, and will run the program you have selected, opening the address pointed to by the clipboard contents.
If you do not want to perform any actions on the clipboard contents, select Do Nothing 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 Preferences dialog, and the option Timeout for action pop-ups under the General tab.
Actions can be disabled completely by clicking on and selecting Actions Enabled, or by pressing V followed by X.
Clipboard contents which match a regular expression can also be edited before performing an action on them. Select Edit and process again on the pop-up menu, 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 Modes

General
can be used to set the clipboard mode for the whole of . The first mode will be familiar to and users: Text is inserted into the clipboard using an application's cut/copy (or generally X and C respectively) function, and the application's paste (or generally V) function pastes the contents of this clipboard.
The second mode will be more familiar to longtime users: Selected text is copied to this clipboard, and clicking the middle mouse button pastes the contents of this clipboard.

Changing Clipboard Modes
In order to change clipboard modes, select Preferences from the pop-up menu, and in the dialog box that appears, select the General tab. The Synchronize contents of the clipboard and the selection check box determines the clipboard mode. If the box is selected, the clipboard functions in the mode; if not, the / mode is used.