Field help (RUL)

Select a rule:

- "Mandatory" selection: The user has to select the option 1 in the group
- Option "linked with": If a selection is made in the group 1, a selection will be mandatory in
the group 2 (defined later)
- Option "forbidden with" If a selection is made in the group 1
all choice is forbidden in the group 2 (defined later)