White Chase through group of 3channel RGB LED which could be any colour

I wish to run a White Chase through  several groups of 3channel RGB LED which could be any colour.

I spoke to Richard at ETC, he suggested a new Mark On Dynamic Template with Red Green and Blue parameters, but I can only get the colour to run through the white as I need 5:1 not 1:5 if that makes any sense.

Any ideas please?

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