How to setup User ID for default warehouse

Hi all, 

 I have 5 warehouses, there are: WH1, WH2, WH3, WH4 and WH5. 

I need to setup User ID who can view or create PO, SO or inventory transaction from WH1, WH2

I find more information in Warehouse management module and I can't setup because the check list is blank 

Anyone knows this situation and give me some guides, 

Thanks in advance

Van Nguyen