Cant locate RGB channels for tone curve on Lightroom CC

Just like the title suggest on my Lightroom only has the Tone Curve that allows me to control like the (b/w). But I cant seem to locate the individual RBG channels. When watching youtube videos I see on their lightroom below the graph they can change the channel but for mine it says Point Curve: Linear, Medium Constract or Strong Contrast. I really hope to find this because I cant color grade at the best level. I dont understand why its not in my lightroom thank you.