That’s what I figured. I program AutoLISP (for AutoCAD) and I am easily able to make what I call “quick property overrides”. That is for example, I type “240” and it overrides the object’s color to 240; the beauty of having a command line is that you can simply use numbers as command name aliases. In AutoCAD I could do the same with lineweights. RhinoCommon is actually really good. I just don’t know it. I’m assuming something similar could be whipped up quite easily in Rhino.
AutoCAD again has a “chprops” command. I don’t know if Rhino has a similar command but it might… if it does you might be able to do this simply with Macro or Rhino script.
Here’s a link to a solution to a similar problem:
I know you weren’t likely looking to get into programming when you sought out a solution to this. I’m just sharing so that you have “hope” that a future solution is not far off… I’m eventually going to program something similar for myself in RhinoCommon, but simply lack the skill. If this was AutoCAD and AutoLISP it would only take me minutes… so maybe someone might come to the rescue.
A quick and dirty AutoLISP solution would involve writing a simple code, and then just copying the code and renaming the alias. For example, the script for 0.15mm override would simply be called by typing “lw15” or something like that… lw50 for 0.50mm, etc…