Developer Functions (Vehicle I/O usage and utilities for Control Panel Project)

[Coyote]

Good evening everyone. 
In order to save your eyes reading, I am linking a youtube video of my control panel project. 
I am already at some good milestone at building a multifunctional panel for different locomotives and have some problems with soft. 
Please, have a look at the video first ❤️ 

I know there is F8 developer board. Based on how it looks there should be a possibility to send commands directly to simulator (as "raw commands") instead of emulating keyboard key strokes. Any information with that? Is there any tool or utility available for that?
Your assistance will be greatly appreciated.