Functional requirements
This is a type of section with its own editor where we list the functional requirements of the project.
To add it we select the type Functional requirements when adding section, then we can edit it by doing
double click on the name of the section (Ctrl + Enter). We will add functional requirements by pressing the insert button 
(Ctrl + Insert) we will write
the title of the requirement and then its description. We will validate by pressing the accept button or by means of the keys (Ctrl + Enter).
Above the requirements will be added, with the arrow buttons or keyboard access (Ctrl + ↑/↓), we can change the position of the selected requirement. Using the keys (Alt + D), or by pressing
the button, we can delete it.
Functional requirements editor
View of the functional requirements in the document
The style used for this section is the one we have in the predefined styles such as HeadRF for headers and TextRF for the descriptions. Styles are edited from project options.
