Make more parameters for the tree configurable in the property editor
The uc.picker property editor is good to have. However, as far as I understand, the Tree parameter does nothing.
More importantly, there's a lot of parameters to the tree directive that would make sense to configure. For instance multiSelect and styling.
What would make it even more nice is to be able to start at the one catalog many would have instead of having to drill through "uCommerce, catalogs, catalog" to get to the categories.
Even better, make it possible to configure a start node.