Making parts of soft body "kinematic"

[ZZpbt.]

Yes, you would use those same operators I mentioned to do that.

If you check the official example files you can find places where I show how to use them.

Ok i went through the examples, but couldnt find any that would make a part of the particle object absolut rigid. The flag example file is partially rigid while bound to the cord/pole, and won´t follow it when moved around.
I was thinking of something like the cloth modifier does. It lets you select verts, that you can make rigid and attach/link to an animated object. Or the surface option with soft constrainment.
Can you tell me in which example file to look to get the same results, please?