Bug in GUI with "Hover points on"
o create two slices in a dataset
o make only the first slice visible
o use the button "Hover points on" to show some data in the cut -- works
o make the second slice visible, the first one invisible --> use the mouse to show some points on the second slice - it will still show the data of the first slice
o only if you click the "Hover points on" off and the again on, it will work in the second slice