Review / Perform harness in Pega Constellation

How to know in Pega constellation, that if the current user is viewing the Review screen or performing an assignment?

We need to make some local actions visible if the user is on the Review screen, but hide them when they are on the perform screen. We have tried to used the OOTB ones like pzIsPerform harness etc. when rules but these are applicable for Traditional UI based applications , but for constellation none of them works.

Pega should provide some means to the developers to help them understand if the user is on the Review screen or perform screen and allow building rules around that,.

@ShuvadeepDas the concept of Review and Perform is something that applies to Traditional UI only and does not translate in Constellation. This concept was only applicable when the whole screen (e.g. harness) was reload when opening an assignment.

In Constellation, opening a case will not lock the case or not submit any data - this is similar to a review harness.

When opening an assignment, you will lock the case until the assignment is complete - because only the form is loaded in the UI, there is no harness change.

The only concept that is similar to the review / perform harness is the type of view - A form view is an editable form and could be compared to a perform mode - the other views (like details) are read-only.