Press the green flag to start the movement. I really hope this helps you guys! It is not perfect, but it can really help with newer people who are still learning things in scratch.
Directions; Create your body part. After you make your first sprite, make another base sprite (I use the bow tie because it is small and easy to delete), go back to your first sprite, and go to the pointer button. Once you have gotten there, above your sprite should be a "copy" and "paste" button. Click the copy button, and go to your other sprite and press paste and repeat to modify the sprites to different movements. After doing that, get a "when the green flag is pressed" block and make that your first block. Then get repeat 10 times block and change it to however many times you want your sprite to move. Once you got that, get "change sprite to --" and put in the sprite you want, then get "wait 1 seconds" block and repeat the process.