Android Question how to hide menu items created by Activity.AddmenuItem3

I found one interesting post regarding this point posted by Erel, I will start reading it now... wish me fun. Thanks

This is the relevant Tutorial
https://www.b4x.com/android/forum/threads/material-design-4-modifyable-and-advanced-menu.49128/

Thanks DonManfred
I tried the project in the link, however it complains of unknown type ACmenu and indicating missing library... I have some difficulties of finding the libraries, and referencing them in my projects... I am very new to the mobile development, and has no knowledge of Java... Sorry I am still trying hoping to get a reasonable grasp on the whole concept.

Thanks Great Erel, your post solved my problem I can have now a better handle on the menus and changing them dynamically through code. here is Erel post.... I am grateful to you guys...

https://www.b4x.com/android/forum/threads/stdactionbar-another-actionbar-library.36786/