add online mode

I hope simple rockets2 add oline mode,because it is fun to play with friend together,with the friend help,we can do things more easily(for example:docking,I am not got at docking,if I can play with my friend,docking will become more esaily),and if you add this mode,you can beat the ksp2(kerbal space program2)more easily,if you not,maybe you will beat by ksp2.(I'm a Chinese middle school student,so I'm not good at English,if this suggestion have the mistake,just call me at the first time!)