At the moment, if you use a reference of a type def to pass info to other indicators, and then change the type def, the wires from the reference to these indicators are broken. It is quite painful to manually fix all these broken wires. It may reduce some pain, but does not solve the problem even if you make these indicators type def.
It will be really nice if the reference of a type def control can also be defined as a type def and paired with the original type def. When the original type def is changed, this type def for reference is changed automatically.
