If everything completed as intended, you should be able to see now the menu at the game lobby. BY ALL MEANS DO NOT CLOSE THE CMD LOADER! YOU CAN JUST MINIMIZE IT.
With the menu loaded, operate with the menu by pressing the button INSERT from your keyboard. Operate with the options by clicking on them to enable/disable options or manipulate them or using the F keys to change the aim key or bones.
Keep present that if you close the game, you just have to repeat the Load Riot vanguard step and not the Load driver from the CMD, however, if you shut down the device, repeat the whole process.