Router Upgrade

I am upgrading my router from a DGND to an RAX120 and I am asking if there is a simple or slick or less time consuming way to transfer all the settings over from the DGND to the RAX.

I'm asking because I have a lot of manual settings in the DGND between reservations, ports, etc. and to do the settings changes manually will be very time consiming.

I know I can not save the config and then import.

The DGND will print out a reference "Text" file of it's settings, so it's possible to read the printed text and manually enter it on the RAX.

Is it possible to add the RAX to the current LAN and then log into both routers and do a back and forth page for page copy paste routine?

I'm asking for input advice on the easiest simpliest way to accomplish this task.

Thanks.