there is a very important function missing.
When many asteroids has been taken and the seeds need to be taken onto the front, it actually is very complicated and time consuming to click all that planets over and over to the next planet for moving them to the front.
How about this:
Waypoints can be set for an asteriod.
Example: select the Start asteriod, Hold Strg and click to the new asteriod the waypoing should be set for. now a little input box should appear with selection of min seeds to stay at the Start asteriod. If only pressing enter or click with mouse on the screen, the default value 0 will be set.
So now every seed produced by the asteriod will move to the new waypoint.
There also should be a option to select ALL seeds available to move to a waypoint.
I would love to see this in future version