Endnote online? not easily
Easily in the desktop version. See attached image for the way to edit an output style to accomplish this. But since I had to do it to get the image, I also attach the modified otuput style (which you would need to open (should open in endnote) save as (can remove the word copy), then in the document, view additional styles and then find this one and select it and “update citations and bibliography”
Harvard semi-colon.ens (24.7 KB)