1. Log into my.wehuntapp.com
2. Click Hunting grounds in the left-hand menu
3. Select the hunting ground in question from the left-hand menu 
4. Click on Boundaries
5. Select +Add demarcated subarea
6. Click on the map and draw the demarcated subarea boundary. If the boundary closes before you are finished, you can drag the dots that have been formed on the boundary line to draw the correct boundary. You can change the boundary at any time subsequently by selecting Unlock demarcated subarea border
7. Save