How to create drop down list

I have created a field in sales invoice as “Butcher Name” and wants to add a drop down list along, how do I create it?

for example, how to create this drop down list?


When you add a row on sales invoice from ‘Customize Form’ you should select the type as ‘Select’ and the drop down values should be entered in ‘Option’ field.

Also if you wan’t to have a list where you can add items you wan’t to use the field-type “link”. This point to another DocTyp which you can set in the Option field as mensioned.