How to manage Sales Orders Picklists values?
1. Go to CRM Menu -> Inventory -> Sales Orders Menu.
2. Click Customize button in the top right. and Click Sales Orders Picklists value Menu.
3. First in Select module in module Field.
4. Select Picklist in your module.
5. Click + add Value button.
6. Open add item popup and Enter the information related to the Picklist.
7. Click Save button.