>>When I add file to the project manager (h files) after recompile, the files are moved from text files section to other files section. How can I avoid this situation.
>
>Header files (.h files) are alway refernced through the "Other files" section.

You can add .H files to the "Other files" section or any other section but if you click on ADD button in the "Text File" section you'll see that .H is included in the "Files of type" list.