The Dilemma

so i am using this online app called Family Tree and i am trying to add my brothers and sisters names to it but there is just one problem...the app does not allow me to add more than one mother... ok so i have a job for all my computer nerd/techie/webdeveloper friends! Create an interactive online family tree that allows the user to add more than one mothers (or fathers) in the same family. help me display what some Jamaican family trees really look like