All views in Thyra have the behavior as outlined in the below diagram:

State Behavior of Thyra Views (UML State Diagram)

The above state behavior allows for straightforward implementations of both "direct" and "detached" views of data from the parent object. In general, the state behavior of these views is based on overlapping views. It is usually okay to allow multiple changeable views to be active if these views do not overlap but it depends on the implementation of underlying parent object and of the views. Multiple non-changeable views should always be allowed, even if they overlap.