If you're lazy like me and feeling like that Virtual Spiral Keyboard is kinda annoying and it is difficult to navigate for writing some long messages than this guide might help you or make your life even worse.

Right now I found 2 (two) easy solutions: well it actually took me like 4 hours to play around and see what's working and what is trash

Solution 1: On-Screen Keyboard - kinda ugly but it's the fastest available solution without spending your precious time and energy.
Solution 2: Touch Keyboard - looks better than On-Screen Keyboard but you'll need some time to configure Controller Companion and do some hecking. Won't work on Windows 7 (XP and Vista too btw)

• Open Controller Companion settings. For this just click on Controller Companion icon located on Taskbar
  
• Now navigate to profiles tab and select Edit bindings
  
• In the opened window select Left Stick -> Keyboard -> Combo Key...
  
  
• With your mouse select next keys combination: CTRL+WIN+O
  
  
• Click OK

That's all. Now when you'll click Left Stick you'll see On-Screen Keyboard.

To close it just click again Left Stick.

Windows 10 has a nice 'Touch Keyboard'.
Unfortunately there is no hotkey to show/hide it like with On-Screen Keyboard. Also Touch Keyboard process is not terminating itself when the user closes the window [X]
The simplest way I was able to find is to create a simple batch file that will execute next command:

• Create a simple file.txt file
  
• Put this code into file:
  
  tasklist | find /i "TabTip.exe" >NUL && ( taskkill /im "TabTip.exe" /f ) start "" "TabTip.exe"
  
  Quick explanation:
  
  • first 3 lines we check if Touch Keyboard process is running and we kill (stop) it
    
  • the last line we start Touch Keyboard
  
  
  
• Save the file
  
• Change file extension to
  .bat
  (if you don't know how to do it ask GoOgle)
  
• Open Controller Companion settings and proceed to 'Edit bindings'
  
• Click on Left Stick -> Custom shortcut...
  
• Select
  file.bat
  that we created a few steps above
  
• Click OK

Now when you'll click Left Stick you'll see Touch Keyboard

To close it just click on the [X] icon.

Cons:

• You'll need to create file.bat
  
• A console window will pop-up and close every time you'll press Left Stick
  
• You can't close Touch Keyboard by pressing again on Left Stick