You have already created a slicer and table in previous topic. Now we will see some options for formatting slicers  

Try Following Formatting Options

1. Changing the style of Date Slicer to Tile

Under the "Build" pane - go to "Field" - "Right Click" on "Order Date" - a drop down will appear - select "Date Hierarchy" - a date hierarchy will be created in the under the "Fields" option - Remove year, quarter, month, day by clicking on "X" button - in the "Format" pane - go to "Slicer Setting" -  under slicer setting go to "Options" - click on the dropdown under "Style" and select the option "Tile" - now you will be able to see the dates in date slicer according to years and arranged in Tiles

2. Adding "Select All" button to Date Slicer

In the "Format" pane - go to "Slicer Setting" - under slicer setting go to "Selection" - turn on the button named "Show select all button in option"- now you observe that select all button has appeared on the date slicer.