To create the floors layout go to "Objects" => "My objects" => "Apartment Complex" => "Building" => "Section" choose "Add floor layout" at the bottom of the page:
Indicate the type floors the type plan will be created for:
Press "Upload image" to upload the image of the floor:
To circle the accomodation layout - with the use of the left mouse button click the corner points of the accomodation on the floor layout. To circuit the сontour click on the first point.
In a popup window choose the accomodation layout, for which the highlighting was made and press "Link".
Select all the accomodations on the floor in question in the same way. After you finish editings press "Save".