A budding mapmaker is at your service.

Old man, you click on the map parameters and specifications. Then, you set the player properties and choose the player color. You'll notice a line below for activating the player on the map. And also! Please :)

Added 3 minutes later
Zuk! Your maps are great! Keep up the good work! I'm sure you'll become a great map editor!

Sandro, I agree.