Extremely useful extension, THANK YOU.
For the next update, please have a look at the Show/Isolate/Hide... layer-by-Filter. I have "Existing filters:' from prior actions but when selection one of them from the drop-down box, it doesn't populate the "Filter string to * layers" entry at the bottom of the window. I have to re-type the filter string each time. Can't use the prior Existing filters.
I'm using SketchUp Make 2016 for compatibility with my PCs.
Thanks.