is positioned.
| AboveCenter |
Above, centered |
| AboveLeft |
Above the source panel, aligned to the left. |
| BelowCenter |
Below the source panel, centered horizontally. |
| BelowLeft |
Below the source panel, aliging on the left. Do not stretch to size of Sandbox.UI.Popup.PopupSource. |
| BelowStretch |
Below the source panel, stretch to the width of the Sandbox.UI.Popup.PopupSource. |
| Left |
To the left of the source panel, centered. |
| LeftBottom |
To the left of the source panel, aligned to the bottom. |
| UnderMouse |
Position where the mouse cursor is currently |