To filter charge points is easy! On the Map page, tap the Filters icon at the top corner of the screen, then tap any filter options you want and then ‘Apply’ to make your selections.
In addition, to filter to show only chargers which are currently reported as available, tap the green tick button at the right-hand side of the map screen. You can then tap the button again to disable this filter and display all chargers whether they are available or not.