The Sites Tab on your Settings page gives you the information about your site location, and your weather station (if you have one connected). You can also add a processing plant from a drop-down list (click on Add Abattoir).
If you want to remove a site from your account go to the Sites Tab and select the site you wish to remove from the list, then click on the Remove Site button.
Adding other feedlots
If you want to see the forecast for another feedlot you will need to contact the administrator of that feedlot and ask them to add you to their site. They can add you by using the Invite User option in the Users tab (note you will need to provide them with the email address you use for Kite).