The system designer is great, but there are two things that I find frustrating. Since random seeds are not implemented, I want to create new seeds for each planet across many previously created systems before I play them. 1) Clicking "Close" takes me back to the main menu, when I'd really like to go back to the "Systems" tab of the system designer. Maybe, instead of the "Close" button, there could be two buttons. One for the main menu and one for the system designer. Or something... 2) Can I cycle through planets without clicking on them? Clicking on a planet resets its orbit to be circular, and invariably changes its radius (slightly).