To post a link. Open the page you want to link to and copy the address, start your reply/post on the forum and when you want to add a link highlight the text you want to use as a link eg Henderson trencher click on the
button in box above where you enter text. A pop up window will appear, paste the address previously copied into the url box, then click on add link at bottom of pop up window. Job done. (the url of the link will appear in the window where you are writing, but will appear as a link when posted on the forum).