The detail usage of StationeryPalette are described in the Help documents which can be displayed with Help button in StationeryPalette's window.
In this document, the installation process is discribed.
Place StationeryPalette.app into the Applications folder.
A service menu provided by StationeryPalette will be enabled after relogin.
Each application of FileClipper require permission to control your computer using accesibility features (GUI Scripting). When the application is launched at the first time, following dialog will be displayed.
Pressing "Open System Preferences" cause to open "System Preferences" and to add the applicaiton into the "Accessibility" list of the "Privary" tab of the "Secutiry & Privacy" pane. Turn the check box of the application on.