Registers the cell control pane (CellControlPane) with the default task pane registry, unless a pane is already registered under its key. The formatCellControl command calls it before opening the pane.
formatCellControl
Registers the cell control pane (CellControlPane) with the default task pane registry, unless a pane is already registered under its key. The
formatCellControlcommand calls it before opening the pane.