I have created 14px by 14px images for a mini navigation area, and added them to a set of Image components. Due to the very small size, these objects are not selectable on the Xcelsius design canvas, although I can select them in the object browser. The only way for me to affect their position on the canvas is to add another temporary object and do a multiple selection, and then drag the temporary object around. (The object in question gets dragged along with it).
Since I seem to have a decent workaround, I'm just posting about it to report the problem.