- shortcut to hide segmentation maps (all at once instead of just one by clicking). Even if opacity is set to <100% it is sometimes necessary to see exactly what is "behind" the segmentation map.
- Label selection: I would be helpful to be able to change the active label without having to "leave" the image. Comparable with the short cuts for the tool selection. Thinkable: press "l" and click segmentations label of choice -> this label will be active
Added two shortcuts to allow the above mentioned functionality.
`CTRL+H` will toggle the visibility of the current working node (the segmentation).
`CTRL+L` will iterate over all labels and the them active one after another.