AT:

For user task duration reports only, in the Show Flow Node configuration:

• The user cannot interact with non-usertaks flow nodes
• The state of non-usertask flow nodes in the hiddenNodes array cannot be changed in the user task duration report configuration (except by resetting to default), meaning: It is not possible to add any non-usertask to hidden nodes and it is not possible to remove any non-usertask from hidden nodes

Note:
If needed an endpoint similar to Flow Node Names can be provided.