␣⌘Add Task room

The + row as built, beside two layouts of what was decided: the system's text field at its standard size, padded like the rows around it. Every column works the same way. Type a task, then press Return to add it and close the row, ⌘Return to add it and open a fresh row, or Esc to cancel. Click + on the group's header to open the row again.

Open questions

  1. Which layout? A, the destination and keys on a line under the field (recommended, since the keys are new), or B, the destination inside the field's trailing end, with no key line.
  2. Should the row get the Overlay fill, so it reads as one unit with its field (yes/no)?