I am aware that you can drag part icons; I don't think you could make it out of the atmosphere without figuring that one out. Consider this: You have say 6 stacks to decouple, 24 separation rockets to launch when they do, and maybe some other miscellaneous parts to activate each at different times; say only 2 of the six should activate at this stage the game will lump most everything in one stage because you used symmetry mode to place all six stacks. It be comes VERY tedious to drag and drop every separation rock and decoupler into the proper place for your purpose. And why doesn't the Launch Stability Enhancer always default to the bottom of the staging list?