This check box is selected automatically if the All tasks check box (field TACALL) is selected. Leave this check box selected to copy all task operations (labor tasks) from the source project to the destination project. If you do not want to copy labor tasks to the destination project, clear this check box.
With this check box selected, all task operation lines in the table in the Tasks section are selected. You can, however, deselect lines that are not to be copied by clearing individual check boxes (in the Tasks section).