Help with adding HIDs to UI components

[Dione Maddern]

Hi all. I'm part of the Documentation team, currently working on the 
Offline Help for LibreOffice. I've noticed that a number of components 
in the the UI have missing or wrong HIDs (E.g. Bug 159505 
(https://bugs.documentfoundation.org/show_bug.cgi?id=159505). This makes 
it impossible to link them to the correct Help page. As a result there 
are a number of Documentation bugs that we can't address.

The problem seems to mainly affect the Menu Bar, which seems to work a 
little differently from other parts of the UI. I gather that adding the 
HIDs would involve editing the source code for the relevant component.

Would somebody be willing to show me how to find the right files and add 
the HIDs?

Sorry if I'm using the wrong terminology. I have a basic knowledge of 
coding but I'm not from a software development background.