I have "Build a better mouse trap" and I want to permanently add some weapons, powers and headquarters in Hero Lab for fast build. So far, I have only seen the "custom" things which doesn't let you customize the weapon (for example) or doesn't let me reproduce it between two separate sheets.

Any ideas?

[answered partially]

I just found the editor! For those asking the same question as me, just go to "Tools" and "Show Editor". That's grand! I hope I will not run into other problems in the future but otherwise, I am pumped and think of spending some hours / days writing all my stuff.