If you want to remove [Job ticket items] from the CostSheet without disturbing the proper calculation settings. Use this procedure.
Click [Remove items].
The [Remove items] dialog will open. The dialog contains all [Job ticket items] that are available in the job ticket table.
Select the [Job ticket items] you want to remove from the CostSheet. You can select the [Job ticket items] one by one via the check boxes or select all / deselect all.
Click OK to remove the [Job ticket items] from the CostSheet.
The [Job ticket items] are removed from the job ticket table.
For each removed [Job ticket item]:
Remove the cells of the result table from the calculations that used the [Job ticket item].
Remove the [Job ticket item] from the result table.