Operator Import Path Cheat Sheet?

Maybe this is a dumb question (I'm pretty new to RxJs), but understand it's ideal to import operators on their own rather than importing the whole RxJS kitchen sink into one's JS/TS file. However, I'm finding myself spending a lot time trying to find the path to each operator I'm trying to import.

WebStorm doesn't seem to want to do any auto-imports on Rx operators, and I'm using the angular-cli with tons of dependencies, so trying to find them in my node_modules folder is very time-consuming and slow. They don't all seem to be in the rxjs/add/operator folder and I'm trying to figure out the rhyme and reason for where each operator is located.

Is there some sort of cheatsheet/explanation for this? Or could we possibly create one with the docs? Thanks.