At the top of the Stock Record window select Purchase. A drop down menu will then appear as shown on the below image:
These options are mostly quick access to functions that are available on the PDI/Prep tab.
The only option that is not a quick access item via this drop down menu is Transfer to another Branch. This options is only available from this menu.
Create Workshop Order - this option is also available via the PDI/Prep. For more information regarding creating a Workshop Order against a Stock Record please click here.