TIWCGJQGanttTask.Level Property
It is the depth (the indentation) of a task in the Gantt structure. The root task is at level 0 (zero), its children at level 1 (one) and so on. Levels must be consistent with the project structure: you can’t have a task of level n+1 if you don’t have a task of level n above on the array.
published property Level: Integer index 03 read GetIntegerValue write SetIntegerValue stored IsIntegerStored;
Property Value
Type: Integer