so far it seems i always have to manually press that red exclamation mark "!"
in the pivot chart toolbar, to achieve the desired chart update.

 

But is there a way to maybe automate this,

so that when i select for example the chart tab,

that it auto updates the chart instantly?

 

F5 also does not work.

 

thanks a lot !

 

and PS: i guess there is also no way so far,

to copy a nicely custom colored scheme unto another chart, 
or at least to duplicate the same view unto another pivot chart,

because i had to always re-create the look for each chart individually.

 

thanks!