This works:
Sum({<ID={8}>} m_count1) + Sum({<ID={8}>} m_count2) + Sum({<ID={8}>} m_count3)
But it involves specifying the same set expression repeatedly. Is there a way to apply set analysis to the expression as a whole? I'm looking for something like this:
{<ID={8}>} Sum(m_count1) + Sum(m_count2) + Sum(m_count3)
Note: I know that in this particular case, I could do this:
Sum({<ID={8}>} m_count1 + m_count2 + m_count3)
But sometimes you can't get away with doing the math pre-aggregation.
Not advisable, but may be this
Sum({<ID = {8}>} Aggr(Sum(m_count1) + Sum(m_count2) + Sum(m_count3), YourChartDimensions))
This would be unnecessarily complicating your expression