Grafana/Graphite Functions

Hi all,

is there any option to set a Threshold with an other function? Here is what I want to do:

alias(removeBelowValue(#F, 600), ‘Matches’ )

This works without Problems, but I need to set a variable Threshold, depending on the count or highestCurrent of the Series.

So I tried to configure this: alias(removeBelowValue(#F, highestCurrent(#I,1)), ‘Matches’ )

But this is not working. Any Ideas concering this case?