pull-down menu on the size

[warrentk80]

Hello to all

in an object table containing the data, I have enabled the option to have the drop down menu on the size (select option drop-down menu on the tab of the properties of the graph)

With this option, the drop-down menu is enabled but when I select an entry selection does not work and the filter is applied on the selected dimension.

someone could show me how to do?