Each section should have a form for creating new boxes.

[multiscan]

Two options:

1. if we pre-fill the profile with all default model boxes then the only type of box that we will want to add is the free one (free title, free rich text);
2. if we do not pre-fill the profile, then we will add a dropdown listing model boxes available for that section. A free model box should be available for each section. User should not be allowed to have more than one copy of each model box (or at least some kind of model box, should we add a field ti indicate if model box is repeatable ?). If we decide to go for this option then boxes should also be deletable.