Rows to add below the last row before writing (canAddRows).
The cells to write: display row (may be ≥ rowCount for added rows), model column, value.
Cells cut off at the last column (or the last row without canAddRows).
The covered target (display rows, model columns from the first to the last shown column).
Target cells left out because they are not writable.
Result of computePastePlan.
Since
1.1.99