Being able to paste an image would be a significant addition. Speaking of which, without this ability, how did you get those images pasted onto the whiteboard in the screen capture above? Did you convert it to SVG? Also, since you essentially "paste" various types of images (e.g. bmp, gif, jpg) via the "set background" function, why allow the option to either center or stretch it (right now it stretches it). Having it centered, then it would be similar to the functionality of pasting it.