How to Open the Dev Console
Portal Reloaded prevents you from opening the console which is kind of cringe, especially if you’re a true epic gamer and need special key-binds that you cant get from the settings menu (i.e. two buttons that do the same thing).
To force the console on, open the properties menu of Portal Reloaded (right click on it in your steam library), and then add -console to the game’s launch options (located at the bottom of the properties window).
Congratulations you can now run “bind mwheelup +jump” and “bind mwheeldown +jump” and then bhop into the sunset or something.