XMenu: Can some applications be excluded?

I have many applications (3 screens with big icons), and many are rarely used. Can I block applications from appearing in the menu?

The same issue occurs with the Home menu that contains empty folders and misplaced items such as kindlegen and license files.

Sorry, but no. However, you can use the Custom menu to selectively add what you want to access.
Tuesday Tip: Organize your XMenu
Tuesday tip: Shortcuts to XMenu’s Custom folder