Option to not publish Scheduled posts

Show them in the queue, but allow me to post them manually.

Basically, enable me to just use the queue as a calendar for reference.

From Florian:

Hey, is there any way we can put posts in a calendar or in the schedule but without them going out?

I would like to plan what to post when but I do actually want to do all posts manually by myself.

So the Queue would be great if i could just set it to not actually post.