It launches an interface created in iRidium studio.
It allows to control several objects (for example, a house, an apartment and an office) from one project. It is also possible to switch between several projects in one app.
i3 pro can work with a server as well as without it. Use without a server is suitable in cases when only good visualization is required (for example to control home cinema or for AMX and Crestron projects or small-scale KNX projects) and server functions are not needed.