To integrate Paddee design templates in your Check Cherry account, go to Manage --> Business Settings --> Integrations and look for the Paddee logo, then click the Enable button beneath the logo.
Once you import the designs, you can select which templates to show based on category and layout. You can also assign different templates to specific packages.
A blue bar across the top of the design templates page will give you the option of applying the new templates to your existing bookings.