Configures the selection behavior of the Gantt.
To define selection mode of cell
Gantt supports row, cell, and both (row and cell) selection mode.
Defaults to Row
If ‘persistSelection’ set to true, then the Gantt selection is persisted on all operations.
Defaults to false
Defines options for selection type. They are
Single: Allows selection of only a row or a cell.
Multiple: Allows selection of multiple rows or cells.
Defaults to Single