Yes, you can nest grid and table controls in
JSF.
Unfortunately current JSF implementations don't handle the model indexing functions properly for the nested constructs so there's some kludging required to make it work, but it is a fairly common thing to do.
The secret of how to be miserable is to constantly expect things are going to happen the way that they are "supposed" to happen.
You can have faith, which carries the understanding that you may be disappointed. Then there's being a willfully-blind idiot, which virtually guarantees it.