Eh?
The default aircraft are a great place to start when you are learning to paint but we all quickly move on when we discover the constraints.
They are quick and easy to do but the main problem is that the default models use mirror images of one fuselage side for each side of the aircraft. So flags or any text or OK on one side but not the other - something which any painter worth their salt won't want to tolerate after a short while.
M$ get round this by having a 'special' method of applying registrations to models 'after' painting - ie when you select the aircraft to fly. It works rather badly but the good thing is you can just turn it off.
When you are selecting the model there is a box marked ATC Name and a Change button. The current ATC ident ie registration is shown in the box. Click on the Change button, delete the ATC ident in the next box and click on OK.
Voila - a plain fuselage.
But come on - if you're becoming a proficient painter move on to models that are worth spending time and effort on. The default ones just aren't IMHO.
