Hello Steffen,
first of all why would the crosstab show all years when you did filter on the year 2015 ?
Is the crosstab based on the same data source ?
It seems you are using a BEx query as a data source and in that case the easiest / best option to filter with a "default" value for the current year would be to use an EXIT variable in the Bex query and place it in the "Default values" section of the Bex query.
... but that doesn't explain why you only see the one year in the filter.
- is the crosstab and the filter panel based on the same data source ?
regards
Ingo Hilgefort, Visual BI