I tried creating a Standard dimension style, with the option set to 'Scale dimensions according to sheet', similar to 'Dimscale 0' in AutoCAD.

However I cannot get the dimension to scale according to the viewport I'm in, all dimensions are still created in Dimension scale 1. What I was expecting to see was a dimension with a dimscale of 10 when placed in a 1:10 viewport, a dimension with a dimscale of 25 in a viewport that's 1:25, etc.

Anyone else with this behaviour?