In Logic Pro, click the Save button at the bottom of the Library pane. If the Library is not visible, click the Library button on the Logic Pro menu bar or use the default keyboard shortcut: Y.
In the Finder window:
Browse to the file location you want to use. The default folder location is User Patches. If required, create a new folder.
Type the patch name, then press the Save button.
Download the guides:
Logic Pro User Guide: PDF