I can't help with adding items. I thought that the rows could be expanded to allow more information to be added, but it is maybe more complicated than that. Sorry. But what you could do is add the information to your comments at bottom of page. Speaking of your comments,I notice that he is being ridden but is unsound. If he were here,I would wait until he was sound before riding him. Have you tried giving him a break to see if that makes any difference? Ae you sure there are no mechanical hoof issues? Hopefully someone more tecky than I am can help with CH questions.