We are examining the two services to try t estimate the amount of work required to implement these feature request. We will update soon.

Currently, we supply these categories out of the box.
We have considered adding a possibility to create your own custom taxonomy (in addition to the existing categories).
If you find this feature useful, vote it up!

Currently we support only a single location.
Adding support for multiple warehouses is on our roadmap.
As with any Delivrd feature, we rely on our community to help us direct our development efforts, so if this is an important feature, vote it up!