Openvpn client exit nodes drop-down menu for Linux - routers

[hulltech]

Hello,
I would like to see a drop-down menu for the exit nodes to choose which server you would like to connect to as well as a place for your username and password. Adding encryption, a place for ip tables,encryption, and vpn firewalls would be nice. With most vpn providers having servers all over the world it would be great to be able to choose from a list instead of reconfiguring. I have a router that is based on Linux that I am thinking of but the rest would benefit everyone. I have looked for a vpn kill switch
When a dns leak happens but they are only available to os's. It would be great to have a program that would encompass anything that openvpn worked on. Please consider my suggestions.

Thank you,
Have a great day!