EX3700|AC750 WiFi Range Extender

Hello Everyone, I have EX3700|AC750 Wifi Extender . Where I live I have access to two routers both at 2Gz. However my room is located as such that I have bad connection from both routers hence the extender. Sometimes the connection is poor for one sometimes from the other.

I want to know if I can somehow connect to both routers or is there a way for easy switch between routers without going through the setup process again. Thanks