@reef nymph , @vocal orchid & @sweet viper , thanks for checking it out! and for making it clear I can't seem to figure out how to communicate the "why". Please let me know if the following makes sense:
This asset lets you utilize PlayerInputManager for split keyboard/controller. Any split device solution you find on the internet will have you rewrite a replacement for PlayerInputManager.
I created this video https://www.youtube.com/watch?v=RMgNmgaBdwk&t=124s to demonstrate the problem. The first 2 minutes of the video is using only Unity to get to what you'd think would work. After 2 minutes, this video demonstrates the problem. Exactly where it doesn't work as most think it should.
If your use case is simple, such as getting the project in the video to work, doing it yourself could be done in an hour. If you're planning to utilize join/rejoin, key rebinding, or any feature of PlayerInputManager with split keyboard/controller it's going to take you way more than an hour. That's where this asset is worth it.
Above it was mentioned "i could make you this system in under 4 minutes". Then added they were unable to take 4 minutes to prove it. It's also possible they gave it a go then didn't want to comment further after realizing the issue. Do any of you guys believe enough that 2 players, WASD and arrow keys, can utilize PlayerInputManger in less than 15 minutes that you're willing to try doing it?