Problems with modding for space age

[SLywnow]

I worked on some mod for space age and have few questions:
1) Can i hide asteroid chunks from connection info?
2) Why i MUST use normal map and roughness for variations (and i totally cant understand how it works, all i have is black spine something instead what i see in space age (and no examples nor in api nor in game files, because they gens in cycles by many fuction, egh))
3) Can i change background of platform in some space location? Maybe by script, not prototype
4) Can i add my effects to background of platform in some space location (like my own asteroids that fly arouds)
5) Can i fully hide space location from space map until player not research technology?
6) Why even if i set no collision to asteroid it still can damage platform? I fix it by using asteroid chunks, yes, but i wanted effect like smth fly near camera above all objects
7) Why i cant set 0 chance to spawn of some asteroid/chunk in connection? I wanted that my chunks apper only at 0.7 position while travel to location, but i cant do it. Also, it works strange, if set chance in location more then 0.1 then game will not care what you enter in connection, even if 0.0001 in 0.9 distance graph will increese to ~0.07 no mater what
8) Where is sun texture in game files?
9) Can i change sun texture in space map somehow?(dynamically from scripts)