(bsp/a                             :modal
  (bsp/s (fixed/y       1          :transport)
    (bsp/n (fixed/y     1          :status)
      (bsp/n (fixed/y   5          :sample-viewer)
        (bsp/w (fixed/x :w-sidebar :pool)
          (bsp/e                   :samples-keys
            (fill/y                :editor)))))))