Can I Bridge my RAX70 to my RAXE300?

I can't find any options in setup for my RAX70 to put it into Bridge Mode. 

I bought the RAX70 while I waited for my backordered RAXE300 to come in and it did a fantastic job as a wireless router, however the signal is weak on the far side of my house, I though it would be great now that I have two units to place them on opposite ends of the house, using the RAXE300 as my primary and the RAX70 as wireless bridge. But I just can't figure out how to make this work. Is this possible? If so, what do I need to do?

Thank you.