At the moment you want to perform ad hoc paper based PI process for a bin, you may consider to manually block the bin using this process. This may help you to recreate tasks.
http://help.sap.com/saphelp_em70/helpdata/en/46/d4ef3ff74b1825e10000000a1553f6/frameset.htm
In case you have more bins to process, I would recommend to cancel WTs and recreate them using LSMW batch input.
Regards