JOYCONSOLE:

JoyConsole is a console input system created as a plug-in for Quake mods.

With it you can use input devices other than the keyboard to type and enter Quake console commands in a text box.

It also has a "Player Name" mode that allows the player name to be edited without typing the "name" command.

Plus it has a nice pause system that will pause the game while you're using it.

JoyConsole is very easy to install in any mod, and probably everything that you may need to edit to make it compatible with your mod is indicated.

Note: It is recommended to disable the pause system if you want to implement JoyConsole in a multiplayer mod.