This function inserts a new grid, row rectangle, or column rectangle into an existing set or grid and copies the contents of the source rectangle into the new one. The source rectangle is defined by upper-left corner cell ulSourceCellId and lower-right corner cell lrSourceCellId; the target grid, row, or column is identified by targetToid. The width or height of the source rectangle must specify one or more complete rows or columns if targetToid is a row or a column.