[PD] Scope of [block~] and [switch~]

Hi,

I am trying to understand oversampling to eliminate foldover from my patches. In the help file for block~ we read:

    The block~ and switch~ objects set the block size, overlap, and
    up/down-sampling ratio for the window. (The overlap and
    resampling ratio are relative to the super-patch.)

This is confusing to me. If the overlap and resampling ratio are relative to the super-patch, then shouldn't block~ set the block size, overlap, and up/down-sampling ratio for the window and all its sub windows? (sub-patches and abstractions) Is that how it works, in fact?

If not, do you have to include all of the audio rate objects at the same level in a patch without using sub-patches or abstractions?

Thanks for reading.

Cheers, David