Window Tidy is an app which moves and resizes windows of other applications on your Mac. In order to achieve this we have to use a system called Accessibility which gives Window Tidy permission to move and resize windows of applications other than itself. For your security you must explicitly grant permission for Window Tidy to do this.
Here are some more detailed instructions for clarity:
- Click the menu icon at the top left of the screen
- From the system menu choose "System Preferences..."
- Click the "Security & Privacy" icon
- Select the "Privacy" tab at the top of the "Security & Privacy" panel
- In the list on the left choose "Accessibility"
- In the list on the right you should see Window Tidy listed. The list is likely disabled
- To allow you to edit the list, if the padlock is closed in the bottom left corner, click the padlock and enter your system admin password when prompted. The list should then be enabled
- Check the box next to Window Tidy
- Window Tidy should now have access to the accessibility features it requires to function
If the app was displaying a warning icon on the Window Tidy status menu icon, it should now revert to the app icon.
Troubleshooting Drag & Drop
In the unlikely event that you have already configured accessibility but Drag & Drop is still not displaying the Layouts in Window Tidy, you should first check to see that drag monitoring is enabled. To do this click the Window Tidy icon on the status menu, you should see "Window Tidy Enabled" with a tick next to it, if instead you see "Window Tidy Disabled" then click this option to enable Drag & Drop detection. If drag & drop still does not display the Layouts, follow the Accessibility configuration steps above, and if Window Tidy is already ticked, untick it, re-tick it and then restart your Mac before opening Window Tidy again.