Good time everybody!
Please, make me clear about such thing - I have no any possibility to understand some features of Houdini's help system - some Object OPs have no any help information - even they are not described at supplemented PDFs, and they are not present at floating help - they are Path/PathCV - I've found them as new from 6.1 version - maybe I have to get more newest docs?
Other questions about also Object OPs - Did SideFX prune them from menu, or move to other shelves? At docs there are a twice more OPs than I can find at Application. What have I to do to have not these encourgements? Thank you a lot.

Path and PathCV are pretty new - there are two tutorials in the user_guide (HTML help) on how to use them..
User Guide > User Guide Contents > Animation - Path Animation
and
User Guide > User Guide Contents > Kinematics - Follow Curve