Direct and diffuse value at a grid based Analysis

Hi everyone!

I am using grid based analysis in honeybee with EPW data to calculate illuminance incident on a window. Usually, I get Illuminance value as a result in Lux. How can I find the value for both the Direct (sun) and diffuse (sky) component separately at each point in LUX?

If it is not possible;  can we calculate only one component either the direct or diffuse?