Add Element
To add an element, just drag it from the element category on the left and drop it in the working area, or you can double click the element in the category to add.
Move Element
To move the element, you need to select it (by single left click) and then drag to move.
You can also move the selected element with the arrow keys on keyboard. If you hold the SHIFT key and press the arrow keys, the selected element will be nudged for a longer distance.
You can select multiple elements and then move them together.
Resize Element
To resize the element, you need to select it first, then drag its border or corner to resize.
You can also select multiple elements and then resize them together.