Allows you to select the objects that you want to spool. For the Generate Spools command, you can choose pipeline systems, planning blocks, or WBS items. For the Generate Penetration Spools command, you can choose penetration plates.
If you spool by WBS items, two additional drop-down items for WBS Item Type and WBS Item Purpose appear on the Spooling tab. While you are not required to set these options before spooling, the drop-down options provide you with the ability to spool WBS items based on the type and purpose. For example, if you select a WBS Item Type of "Design Area" and a WBS Item Purpose of "Piping," the WBS items with this particular type and purpose are automatically selected in the tree view, allowing you to spool only these WBS items.