I tried xinputplus while troubleshooting other issues with someone and was not fond of it, but that's not to say it doesn't work, although I can't confirm it does work either.
You will set your key bindings in your chosen mapping tool based on the controls you have set in 7H. Go to 7H>Settings>Game Launcher>Controls. There are a list of presets there to choose from. This has nothing to do with the functionality of your controller/driver/etc. It merely sets the keys and buttons for you. You can import (floppy disk icon) your own custom controls from the game into a preset.
The 1998 presets use the numpad on the keyboard to get into the game. The Steam presets use x, c, v, and other weird keys. I recommend you set one of those presets, then go into the game, menu, config>controllers. Then you can see exactly what each key and button are set to and if you're happy with that preset, set your mapping tool to the appropriate keys. Although, you should only need to do that for dpad and triggers. What controller are you using? Did you check your preferred controller in Control Panel?