The key element of the view logic is the form. Forms are used in the platform to organize the input and output of information into the system (from the system).
In the simplest version of the user interface the user opens several fixed forms with which he will work, switching between tabs. However, if the user works with a large number of forms, opening them all at once is not very convenient. In such cases you can use the so-called navigator to work with forms. In this case, when the client starts, only the navigator itself is shown to the user (no forms are opened), and the user can open the forms on his own as needed. Moreover, in the navigator, the user can not only open forms in the interactive view, but execute any actions at large.