Scene consists of cells. Each cell may contain one Item. The initial aspect ratio of a cell is 16:9 but it can be changed to 4:3 (see "Changing Cell Aspect Ratio").
IMPORTANT.It is not possible to change Locked Layouts.
In order to move Item, Click on it and Drag it to a new position (grid cell borders are visible while in motion). Multiple items can also be moved.
If the desired position is already occupied, Items will be swapped (if possible).
If swapping is not possible, the target cell will be marked red:
If bigger Item is being replaced by a smaller one, they will swap sizes as well as positions.