Stop organizing imports in IDEA editor

I guess I'm different from all other IDEA users who've asked questions on the editor organizing imports because they want that: I don't prefer the order of imports automatically imposed in my source code by IDEA. (In fact, I mostly want it the opposite with JDK imports first and my own imports closer to the code I'm writing.)

I'd like to understand how to tell IDEA to stop reorganizing/optimizing/etc. my imports. I just want to do it by hand.