Help finding a Wi-Fi Router with Point and Click WAN Client Mode

I have a customer with a decent sized boat/ship that ends up being moored at various marinas in the world with WiFi access. Currently he has a really old router (and I'm not sure of the manufactuer) that allows him to go to a web interface on the router, perform a site survery, and point and click on a found wireless network and associate the router in client mode to it so it provides the WAN uplink for the router. The ethernet ports on the router then go to a couple of client computers on the ship. I have it setup with a switch box so that he can switch to satellite internet ($$$$$) when he is underway, but use this router when hes in port.

This router has failed several times, its some unit from Broadband Express (well, rebranded) and I'm ready to replace it with another, but I can't find a device that allows for the relatively easy point and click way of going from the site survey, to selecting a network, to associating with it. I don't want him to have to type in an SSID after discovering networks, just click on one (ie Marina_WiFi) and then enter a password if there is one and have it associate.

Can anyone recommmend a device that does this? It didn't appear that DD-WRT would do this, or Tomato. They both seem to require typing in the SSID of the network for the client mode interface.