I have 9 separate story maps which are all form the same topic. I am trying out the new story map templates, in the past I have used classic. These story maps are for an online exhibition. The reason I have made them separate is because the user will access each story map through a virtual exhibition room. On each story map (exhibition board) I have a button to say 'Next Board' which will link to the next story map: eg.

So the link on Next Board will be the URL for the next in sequence Story Map or Board 2 of the exhibition and so on. 'The Return to Main Room' will be a link to go back to the Virtual Room website.
Is there any way of getting the button URL to replace the tab your are on ie. not open on a new tab. By the time the user has finished reading the consultation boards (or story maps) he will have 9 tabs open, so I would prefer that each board is replaced by the next, I also have a button to go back to previous board.
Here is the link to the first board: ArcGIS StoryMaps The Main Room link doesn't yet work.