yup Dev :d

If the ends look weird with percentual widths, then have the ends fixed-width. You could do just those with If-thens. Then you have $ResolutionX-(widthOfEverythingButTheLabels)$ leftover. Because of the roundoff errors with using percents, you should leave one of the labels to have a width as a function of the space for all labels ($resolutionx-allends$) minus the percentual widths of the rest of the labels. Go left to right to make it easier.

leftEndw 50
rightEndw 50
leftEndx 0
rightEndx $ResolutionX-rightEndw$

dotWidth 10

; two ends, three dots
labelSpace $ResolutionX-leftEndw-rightEndw-3*dotWidth$

labelAx $leftEndW$
labelAw $0.1*labelSpace$

dot1x $labelAx+labelAw$

labelBx $dot1x+dotWidth$
labelBw $0.2*labelSpace$

dot2x $labelBx+labelBw$

labelCx $dot2x+dotWidth$
labelCw $0.1*labelSpace$

dot3x $labelCx+labelCw$

labelDx $dot3x+dotWidth$
labelDw $labelSpace-(labelAw+labelBw+labelCw)$

untested, but looks like you can do something similar?