If the source worksheet of a plot has one or more filters, no matter the filter condition is set or not, a Data Slicer can be turned on. The Data slicer is a panel docked at the left side of the graph window. It lists all existed filters, allowing you to view, set, or change the filter condition, disable or enable a filter. Graph will update accordingly.
To turn on the Data Slicer,
Context menu provide different items for different data types.
Click on a filter will pop up a simple dialog to let you change the filter condition
If you have a Year column with Type set to Date > Year format,
and you want to filter data plot per year, you can,
Year(x) = 1992
A filter with a slider will be added to the Data Slicer panel.