The factory line
Line initiatives up and Taiga works them one at a time: it plans the first, builds it, opens a pull request, and now merges that itself once your rules allow.
The list is grouped by how far each initiative has got toward a merged pull request. Build holds the one Taiga is working, planning included. Queue is what you have lined up. Todo and Backlog are yours, and Taiga never moves anything into or out of them.
Autonomous merge is the new end of the line. Once your own rules allow it, Taiga presses merge. It asks your provider whether the pull request may merge and respects the answer, so it can only ever merge something you could have merged yourself. It stays off until you turn it on for the organization.
Reorder the queue by dragging a row, or from the menu at the end of it. The queue is still the only way to start something.
To read a plan before anything is built from it, turn off Build on its own by default. Landed plans then wait with Approve and Reject, and rejecting asks what should change before planning again.