paulvdh  
                
                  
                    September 14, 2021,  3:51am
                   
                  37 
               
             
            
              Modifying schematic symbols ( or creating new ones) is done with the schematic symbol editor. It is part of KiCad, but a separate program. You start it with the icon next to the EEchema icon in the KiCad project manager:
The user interface is very similar to that of Eeschema itself, but to be able to work with it, you also have to learn some library management.
In an earlier post here I already posted a link to a tutorial for the schematic symbol editor.
Here is another one for the library management
  
  
    Disclaimer: screenshots taken in nightly from between version 5.0 and 5.1. Version 5.0.x looks slightly different. Version 5.1.x will look like the screenshots show. 
This is a detailed lecture. If you want to know how to simply add some assets you downloaded to KiCad then you can read the shorter tutorial How to get a downloaded symbol, footprint or full library into KiCad version 5?  
Summary
KiCad does not automatically detect libraries! There is no special library location (you might still ca…