Here on iHub we do not currently have a break (<BR>) tool, or a centering (<CENTER>) tool. What we do have is a Preset Tool:
[-pre] & [/pre-] (without dashes).
When using this tool (tag) you use your Space Bar * Backspace key to move the image or text to where you want it to be located. This is a great charting tool for keeping things lined up, here is an example: