Load a sample file in Power BI desktop.
Import Power Slicer from Market place:
Create a Line chart for Order Date and Profit, select Sub category under Legend option.
Select Power Slicer visualization > put Category, Sub Category fields for Values field:
Go to Format option:
Select few values from slicer:
Check option under Type Selection> Select Tree type:
Select few values from Power Slicer:
Add one more dimension in power Slicer> select Region
All dimension set in tree type
Select multiple dimensions from Power Slicer:
Power slicer is useful Custom Visual for selecting multiple dimension.