Charts: Tick count on the Dimension Axis not working as expected

When I select the manual tick count on the Dimension Axis I would expect a behavior similar to the one I see at the KPI Axis. However it apparently does nothing. Example: When presenting a series of dates, lets say the daily position of a customers credit for a whole year, I filled in 12 in the Ticks count field, expecting it to show only one tick per month, instead of on per day. But nothing happens. Am I interpreting wrongly the way this should work? It would also be nice that data labels would only be displayed where the ticks are shown. Thank you, Joaquim