The JvDocking
controls allow easy docking of windows; those windows can contain anything you'd like them to, including Delphi's standard TScrollBox
. The JVCL has some scrollable panels as well.
If you have questions about what's in the JVCL library, the best thing to do is download it and look at the files it contains. You can do that without installing it if you download the manual installation (zip) file.
Note that the main problem with the JEDI libraries are that they lack documentation for most components (or functions, in the JEDI code library), so you'll need to be good at reading component and (limited) demo source files. There are also a lot of components included, including many that duplicate functionality; it's often hard to find the minor differences between them, and many come with no documentation or demo.