Hello,
I would suggest you to do with POSC as below.
Door --> Staging Area1 for GR --> Deconsolidation WorkCent --> MHU2 (Pack for Repacking) --> interim storage area (Staging Area 2) --> Final bin;
I would suggest you to Implement LOSC, If you have Conveyer System or AS/RS or Movement of Material Halfway through Manual and Half way through Machine, then I would suggest you to Implement LOSC.
In this case, I would suggest you to build your storage process as below in POSC. And, in External Step, you create two stage Areas, one for GR and One for Interim Staging.
Door --> Staging Area1 for GR --> Deconsolidation WorkCent --> MHU2 (Pack for Repacking) --> interim storage area (Staging Area 2) --> Final bin.
I hope, this should best fit for your requirement.
Regards,
Sathish