For the common truss types I've configured the plugin to detect the SketchUp template units and display a metric UI. I've also replaced the x/12 system with degrees for the metric interface. All member sizes and other dimensions are open for the metric interface as well.
Go ahead and give it a whirl, if it checks out then I will go ahead and update the attic and monopitch UI with the metric option.
Go ahead and give it a whirl, if it checks out then I will go ahead and update the attic and monopitch UI with the metric option.