After you created a control, you need to assign the control to other widgets.
The sequence of actions:
Select the control,
Select the widget,
In the left corner of the widget appears a menu where you can see a list of assigning options:
Put on: Rows/Columns/Split - the control will replace any of the above on the subsequent axis
Mask: Rows/Columns/Split - the control will choose what variants from the subsequent axis will be displayed.
Filter - all data in the chart will be filtered through the control.
Value - the control will replace current values with digital equivalents of chosen variables.
Single - combines the selected options by OR logical expression and puts it as one value on the widget.
Compare with - substitutes the base for comparison.
Sort by - choose by which attribute the data will be sorted.
Note: Remember to switch to the VIEW mode if you want to see your controls in action.
To check what controls are assigned to a widget, first select the widget and then go to assignments where you can see what controls are assigned and how.
If you want to see what controls are applied to a chart permanently, select the chart then open 'Show in header' in the widget settings panel then switch on 'filter'.