Wifi Name

[#1]

On the TP-Link router I bought I was able to set up the wi-fi name and password using the name and password of the one from my original TG582N.
Can I set up the replacement TG582N with the same or do I have to use the ones that came on the card with the new router?
It will certainly make swapping routers easier if I can keep the same wifi name and password.

[#2]

Go to home network, then click on the WLAN entry, then configure at the top right.

[#3]

Thanks Jelv 
Had a vague idea of where it was, just wondered if it would accept any name and password.