Click on the new icon to create the screen and edit to edit the screen. the first being new and the 2nd being edit.
Detailed below is the business income screen which opens when you select the rental income button under the income tab. Make changes by selecting the edit key and once the data is entered click on save
You may set up multiple rental business screens for different rental businesses.
When you create the rental income for the first time by clicking on the new icon the system will suggest a rollover from the previous year if there are any. Tick the ones that you wish to roll over. This will be the start to entering the rental income.