I'd like to have the possibility to group related views in the toolbar, i.e. all segmentation view icons should be direct neighbors in the toolbar, separated from other icons.

Currently all icons are sorted alphabetically in a global manner and actually related views are spread all over the toolbar.

If you agree, the question is how to enable icon groups. Two possibilities could be an optional variable somewhere in our build system to assign views to groups or the possibility for users to create custom toolbars (maybe already possible with Qt out of the box?).