Restriction on forza horizon 3

I have been trying to access the user created paints/wraps on forza, but when i try doing so it says “This feature is blocked per your xbox live parental control settings” this is because my account i play on is a child account. so i made an adult account and added my child account to it to manage the permissions but i have no idea where or how to tick this box so i can access these wraps, I do not own an xbox i play on pc.

can anyone help me with this?