Stopping and starting a video without losing my place

Hello everyone! When I'm doing a workout video which has a warm-up and cool-down, I oftentimes want to add another video right before the cool-down of the first one. When I go back to finish the cool-down of the first video, I find that it hasn't stopped where I left it, and I have to do the tedious process of fast-forwarding the video to the spot where I left off. Am I missing some ridiculously easy way to actually pause the first video? Thanks for your help!