How do I use a custom system?

I have 2 tropical planets, 1 rock moon and 1 asteroid.
When I select the system to load it, it doesn't work and the load button is greyed out.
Also, it will only let me load 1 planet.
Is there any way to get a randomly generated system with more than just 2 planets?

Chances are one of your planets is over 1200 size, that counts as 'experimental' and won't load.

Mike

Thanks.
One planet's radius was a few points over 1200.
Gotta watch out for them radii.

it works for me

but the game does not realy like it

forever loading / stuck at Loading

when it loads

strange lag with like 30 units on screen on these Experimental Planets

and some other stuff

but I can load it and can play on Planets with 2000