I've used Renoise for years now....
And every time I wanted to use a sample, my brain was just ingrained in this thinking: drag it into the Waveform editor, or the sample list for an instrument. THEN go to the pattern editor, and enter a note where you want it triggered.
I just realized LAST NIGHT that you can drag samples directly from the browser into the pattern editor, and drop them wherever you want it to occur. It creates the instrument, and creates the event on the line where you drop it. I'm laughing at myself so hard. I seriously didn't know it could do that.... it's so EASY.