5 textures can be uploaded for free. If you want to load more textures you have to pay extra, regardless of your account.
Warning: you can upload your own texture only on web platform!
To upload texture: click on the item you want to modify, click the modify button, on the left side of the menu on the top you will see the icon to add texture.
To see how many textures you can upload, go to your profile. To add more textures, simply click the button "+".
See the attached pictures with instructions below.
IMPORTANT: Old, used or disliked textures can not be deleted. Be cautious when adding them!!!