include file path on files and projetc workspace files

Hi,

I have 2 questions is more about structural and implementation.

I have a directory wich contains several files and the project file *.Uv2 in most of all files, there is includes files which are really communicate even if I don't add this files the the Project Workspace. Must I add all include files of my project to the Project Workspace?

And must be a link between files with the same names addeded in the Project Workspace and those in directories of the project. For example if I use the same name file but in different places of my project directories?

Thank you.

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