You must have a Cartegraph OMS advanced feature extension to access this feature.
Materials do not have an assigned location before using advanced features. In order to use advanced features like Material Ordering, Transfer, Bulk Transfer, etc. all stock materials have to be transferred to locations.
In this case when transferring Materials from no-location to a location, the From Location is not required. However, once all Material is assigned to a Location then the From Location field is required.