How to restrict some items from Pick Release

Hi ,

We have requirement that user don't want Bulky items to be pick release due to space constraint, no resource available to pick it.

So currently they are doing back order for these Bulky components.

Now our requirement is, item is Push Type. But this item should not be shown in Pick slip report , as well it should not be allocated . i.e not to be shown in move order screen.

How can we achieve it?