Configuration: one canvas at a time

The configuration lists the canvases on the left, under the heading Canvases, with a button for a new canvas at the end of the list. The right side shows one canvas at a time: its name, its repositories as tabs and the settings of the repository shown. The settings are always visible, grouped under small headings (where agents work, branch and landing, app and checks, plans and language, demos), so you no longer scroll through every canvas to find a field. Unsaved changes and problems are marked next to each canvas in the list.