Keep the link between the RFT file and the calculation

Once the calculation is complete and the calculation note has been generated, Autopipe vessel can be closed either by mistake or once you have finished, but often you would like to see the calculation note for verification or comparison or something else. The problem is that you have to make a calculation even though you have already made the calculation in the background.

The idea is to keep the calculation despite having closed autopipe and not to make a useless calculation that is already done.