I just started using Drum Replacer over the past few weeks. I'm highlighting the track/clip, right clicking on the track, scrolling to region fx, and not seeing "drum replacer" as an option. The next day I do see it as an option. The day after I won't. Today I've restarted my computer a few times, clicked on different parts of the clip, including the top, whitish part, and getting the same results. Am I doing something wrong?