Cool, I browsed some cubes successfully.
So, given that we do support cubes, then there are additional fields that would be very useful in the selection dialog.
I would like to suggest that we consider having the dialog offer a UI element that allows optional restriction to specific types of maps (i.e., specific values of dataproduct_type) and which, when selected, modifies the selection dialog to add additional columns. For cubes, this means at a minimum supporting hips_cube_depth (which is a mandatory parameter in properties for cubes) and data_cube_bunit3.
I haven't tried a cube yet. I'll do that after my current (1-2) meeting.