WriteRoom resume function

How do I set up WriteRoom so when I open up an existing document, the cursor is at where I left off?

I tried Resuminator but it didn’t work.

Ideally, I’d like to set it up so the preferences are set to each document, not to the app overall. Meaning, I could have some documents that open up where I left off, others at the beginning.

I’m on a Mac using the latest OS (Mac OS Sierra) and everything is updated.

Please see this post:

It’s talking about TaskPaper, but WriteRoom should also work the same way.