Make sure you're logged in to Echoleft before trying to do this.
Find the memorial page you would like to edit. If you are unsure on how to find the page you would like click here.
Click "Settings". You can do this once on your chosen memorial page, in the options bar below the memorial name.
Click "People". A menu will appear on the left, for this task you will need the second one down.
Click "Send Invite". At the bottom of the page is the form you will need to fill out to in order to invite someone.