Can someone help me!? 

What we have done:
We created a custom action(Prompt) that takes values from the analyst, so that the value can be used as input at some point in the playbook with the use of placeholders.

What we are trying to achieve:
Right now as the analyst is giving value to the prompt manually, we want to make case entities available for our custom action in the dropdown list like in the below image. So analysts can select one of the entities from the case, rather than giving it manually. This will save time to the analysts.

Please let me know how can we add this kind of entities dropdown list to the custom actions.


@TonyH