bar /line chart specific label control

Hi,

it would be great to be able to control the specific bars or line points, including the data value labels, the same way you can do in excel where you select a data point rather than the whole series and apply a value lable to it.

An example would be a bar chart with a rolling 7 day x axis, and you only want to show a data value label to the first and last bars to avoid a cluttered look.  Also you may want a different colour for the first and last bar to highlight them - I realise this can be done with colour expressuion but it could be made easier and more intuitive.  (like an option to select 1st and last, or every 2nd data point)

thanks

Gus