- Tags assigned in ProCoSys to support completion activities are internal to ProCoSys and will not be transferred to STID/SAP. Examples are: Preservation area tags Loop numbers (@Loop...) Tags for pressure test packs and related insulation, surface protection, flow-coding, etc. (#Tags) “Dummy” tags for non-ENS tagged items where MC is required, e.g. fireboxes, duct marking, insulation of equipment & tubing, miscellaneous structural scope Post RFO changes via EWPs where ENS tags are owned by Operations and cannot be moved, i.e. may have to create a dummy tag ENS+suffix to be able to handle modificationThe item is subject to technical analysis and should keep performance data.