Tutorial 1 - How to make a sticky ground
1. Create your map
2. Make your ground dynamic with a fixed-rotation
3. Copy/paste the XML in a notepad
4. Find the ground and change the mass to 0.00000001
5. Between <O /> and </Z>, add <L><JR M1="Z value of your sticky ground" M2="Z value of your first static ground" /><JR M1="Z value of your sticky ground" M2="Z value of your second static ground" /></L>
6. Complete M1 and M2 by Z value of the grounds in your map
7. Copy/paste the XML and play