Library how it works?

i do have a directory with a audioconstructing kit …how to make from this a library ?
It seems to be mess how Steinberg explains this all.
I am frustrated because something what has to be a base for a soundproduction is a puzzle how it exactly works.

First i am faced with the problem that he pool window is not showing up…is there a default state for the windows?–yes
ofcourse how to restore it …Restore All… there must be a also default workspace ofcourse

Than there is the problem of organizing a audiodirectory in a library…when i now imported a directory with subdirectories…the structure is lost from the audiconstructing kit…but perhaps in the loopbrowser it is visible?
There is a projectpool and a librarypool

Reading the manual is a easy pace is essential, because it is all documented well !