The first mark.
A small gathering. A blank invitation.
Make a start, or find the detail it needs.
The controls become available when the scene is ready.
Why / limits
A rough draft gives you something to change. Checking a missing detail tells you what you still need. Here, neither move supplies the answer.
This is a made-up invitation, not a rule to act first. For costly, unsafe or hard-to-reverse decisions, check the facts before acting.
Nothing is saved. Start again clears both moves.