Broxicus

I tried to search through this thread, is there any way to edit a current game save youve been playing? Or can I only use this mod when I start a complete new game? Im about halfway through my science tech tree and I use an excel spreadsheet to track everysingle launch and its cost/return and contract incomes etc so I pretend its all real, so ive got alot of effort into my saves. I was hoping to not have to start fresh.