Currently, if you have been on a navigation path, or have created a form, you can create or edit a relationship in an action. That relationship allows you to choose an input’s value or a current navigation path’s ‘thing’.
It would be great to be able to choose a specific collection entry to link to, however.
This might be so with a category:
“Do a search for…” > “Categories” [filter: name = ‘posts’, first item]
This will add the entry to the posts category without the need for a navigation path or a dropdown (eg, not necessarily giving any user the choice).
I imagine this will be particularly helpful when Custom Actions come in, so that information from the database can be used in those actions.