Directed Move functionality

Hi All

In Oracle WMS, we can see few functions under Directed Move

1:Move any LPN

2:Drop Loaded LPNs

3: Drop All LPNs

4: Staging Move

Could you please help me to understand these functions, whats the function of these menu/functions, under what circumstances we will these.

For Ex:

1: in my project once i made the PO receipt , then we are using Move any LPN to drop the loaded LPN.

And system suggesting the respective destination locator based on my Putaway Rules

Thanks

Ram