This is quite straightforward. Use the Contact Us page on the Macclesfield Ukulele Club web site to request a login. You can play view / scroll existing songs without a login but you’ll need one to upload / edit songs. Once you have clicked on the Start Strumming link above and logged in, the existing songs will have Edit buttons and there will be a New button at the end of the list. Either of these lead you on to a simple form. The contents of the songs are entered as lyrics with chord changes entered in square brackets embedded in the text. Once the song has been saved the web site will extract the chords from the lyrics and can display the song with the chords embedded (as entered) or with chords shown above either as text or as diagrams (guitar, mandolin or ukulele) standard tuning. You can change the key when playing the song and the chords / diagrams will change accordingly.