Line chart: show every other Y value / skip data point labels

[shak]

Hey everyone,

while it's easy to show every other x axis label in a line chart (e.g. with Mod()) I can't figure out how to skip some data point labels on the y axis. When I create empty data rows the chart "cuts" the line, so the values have to be there. Does anyone has a trick on how to do it?

To understand the problem better: I have a line chart with a lot of repeating values and just don't need to see every occurrence of the repeated data point label.

Thanks in advance.