How to load new samples into Gobox?

I'm having trouble with the Gobox groove box.

The Reaktor Factory Library Manual states:

"You can select a sample for each of the four samplers using the Choose table. Load new sample maps into the sampler module by double clicking on the waveform display. You can label your sample categories by double clicking on the text field to the left of the Choose table and typing in the corresponding areas."

I can not figure out how to change these samples.

I can see the waveforms available but no amount of clicking or double clicking loads them into the sampler. Note I've tried in EDIT mode and play mode.

The info panel in edit mode even says "double click to load samples" - double click where??

I also have no idea where the "text field to the left of the Choose table" is - but thats less important than actually changing the samples.

Is this a bug?

In the attached screenshot, how would I load the selected sample at the bottom into one of the four samplers? Again, double click does nothing.

Just bought this and the first groovebox I try to use seems to have a bug and not work correctly. I hope it's some simple thing I am missing but I don't think there's anything else I can do.