Programming Help Needed

Hey XPG, I wanted to ask, how can I add three mod tools into one program without needing to recreate those three?

I'm asking this because the three programs I am talking about are rather large and I don't want to make them smaller, I simply want to build the existing programs into mine.

 

I haven't programmed in a while but you could do an AIO (all In One).

 

That's what I'm trying to do...

 

The answer would then be in the question. Package them together then in your program... buttons.