There is a requirement for a custom metric where either of the values to be selected and displayed for the output visual.
We can customize the metric in OTBI, similarly, if we can have a feature included, as of other filter types like List, List Box, Top Bottom N and Slider in OAC's Filter Controls would be helpful and much needed.
This can help users to navigate to properties pane, go to filter controls and select appropriate filter type for the actual metric or the custom metrics in use.