Welcome to the A-4 Cold and Dark checklist startup. This is more of how to perform the startup checklist without the explanation of the buttons and switches. You will be guided through each step using highlights.
To add your own picture to the cockpit photo go to:
C:\Users\xxxxx\Saved Games\DCS\Mods\Aircraft\A-4E-C\Cockpit\Textures
replace the photo with a .PNG of your own and that's it.