upgrades and abilities able

[Dagoz]

How I can set the upgrades and abilities are developed?
Example:
Marines have Stimpack or Bunkers have Neosteelframe (+2 units) at the beginning of the game.

 

[Rispetto]

 

[Dagoz]

I was working on it (Tech Tree and similars), my marines now have stimpack at the beginning, but I do not find the way to upgrade the neosteelframe for bunkers(I modify the space of 4 to 6, directly [F7])