There isn't a single "default" material library. You can delete the native material libraries from Programm Data but I expect SketchUp might throw errors on startup. When I start SketchUp, it goes to the last library I had open. If it's one of my custom libraries, it goes to that one.

Hello, I'm not sure your problem comes from the dynamic components, but rather from your surface estimator. You can purge the dynamic functions of all your dynamic components by saving your files in SKP6. The next time you open your file, your dynamic components will become simple components. So make sure you keep an original version of your file. You can then run a surface calculation that should work. See you soon. David

case closed thanks guys i realized i was not reloading the component into the scene so the attributes were not assigned

You would need to link the particular auto text string to a specific model instance... I often have 2-3 model instances / views on 1 page, sometimes at different scales, sometimes in perspective with no scale. What I do is have custom auto text created that is setup for my typical scales - <s0>, <s1>, <s2>, etc. - then I just type or copy past this in my notations as required.... s0 is NTS, s1 is 1/4" - 1', etc. etc.

I second that! Profile builder can let you easily tweak these profile's shape width/length、placement、mirror、material in one step with one click,very slick!

There may be a way. What version of SketchUp are you using? Please complete your profile.