These control the layout of the control on the panel.
Which edges of the control are anchored to the edges of its panel.
When a control is anchored its position will change as the panel is resized.
At present there is a fault with the saving of controls anchored to anything other than the default top left.
Which edge of the panel the control is docked to.
When a control is docked to an edge, the control will resize automatically as the panel is resized.
The position of the control within the panel.
The position of the control can also be changed by dragging the control with the mouse while in edit mode.
The Width and height of the control.
The size of the control can also be modified by dragging the controls edit handles using the mouse.
The other properties are generally not used.