Validatiors: Could we directly display constraints on a field

I installed the "Validation" TCK template. When opening the edition engine, this is not obvious to understand at a first glance the existing constraints or criteria which exist on a given field. You have to click OK and to make an error to see the warning message.

Would it be possible to directly display the constraints in the interface (and not only manage errors)?

For instance some other WCM (MediaSurface if I remember correctly) have some similar web form input but are displaying mandatory fields or other constraints (e.: value between 1 and 10) below the field name in the main column or aligned on the right in red color above the form input (could be confusing with the error message afterwards).

It seems to me that mandatory fields had some stars "" in Jahia 5 listed in the Edit menu near to the list of all fields in this container, isn'it? Such an option does not work any more?

Finally in regard of the TCK Validation template it would be great to split such tests on various fields with some big-text in-between. This would permit us to verify if the redirect to the right guilty field is correctly working if all fields are not present on the same "view". It would be also nice to try to put a constraint on a metadata field such as the keyword one for instance... Just in order to check this use case