Navigate to the main folder (same place as the game.log files.)
Find & open the config.cfg file in notepad or similar text editor.
Search the following lines:
g_developer "0"
g_console "0"
Replace the "0" with a "1" and save the file.
You only need to do this once, you can leave the settings with "1" enabled, it will not affect your game or performance in any way.
To line up your screenshot you may wish to use the dev_camera (0 on main numbers row) and use the num-pad keys to "fly" around.
There are two options available for taking screenshots/getting co-ordinates.
Get co-ordinates:
Use F11 to bring up the bug report screen.
On the F11 screen type a short message (single words are fine) for the bug and press 'REPORT'.
Simultaneous screenshot & co-ordinates:
Press SHIFT+F11
This will bring up the bug box, when you press 'REPORT SCR' a screenshot will automatically be taken.
Doing either of these methods will generate a file called bugs.txt in the main folder (same place as game.log). Open the file and copy the content into your bug report. If you have multiple reports, each bug will be on a new line in the bugs.txt file.
Example:
Vegetation in road ;[24/10/2019 19:47] (sec-0003+0012);-9908.65;8.1856;48915.9;3.12059;-0.236784