You have to operate on them one at a time or as multiple selections. Not a real problem with images, but text could be inconvenient. Most of the alignment features work well. The abut control seems to have variable behavior. Sometimes it abuts a sprite to the opposite side of the reference sprite.
Lines are extremely cumbersome to draw.
You have to select a polygon shape, draw the line and then render it solid. Like other sprites, you can't change its line thickness, etc. That makes sense, of course, but it's difficult to remember. No Image Capture Utility. No ability to browse multiple files, as in Paint Shop Pro.