Clips
On-Demand clipboard listeningβ
By pausing the clipboard listener (by clicking System Tray->Pause or ControlShiftF1) a π― icon will appear in the top-right of the Pin Tray when there is something new on the clipboard.
Now the only time MonkeyPaste will read the clipboard is when you click the π― button or the ControlShiftF9 global shortcut.
Set it in stone
If you like keeping the Clipboard Listener paused, you can uncheck Settings->Preferences->Listen To Clipboard On Startup to avoid having to pause it everytime you use MonkeyPaste.