KiCAD Guide5
Saving Components into a New Library
On the top toolbar, click the "Create new library and save current component into..." button:
A new library window should appear.
Name your library then navigate to the folder you want the new library to be saved in:
Now click "Save".
Including the New Library in the Library Configuration
On the schematic editor window, on the top toolbar, click "Preferences" then "Library":
The library configuration window should appear:
Click "Add" to include a new library in the configuration.
A library files window should appear. Navigate to and select your new library:
Now click "Open".
On the library configuration window, click "Save Cfg":
A save preferences window should appear. Name your project file, then navigate to the folder you want to save your project file in:
Adding a New Component to an Existing Library
On the library editor window, rename your component by right-clicking the part name field then selecting "Field Edit":
The edit field window should appear. Change the value to another part name:
Now click "Ok".
On the top toolbar, click the "Select Working Library" button:
The select lib window should appear.