Platformer side-scrolling problem

I've noticed that with moving enemies, they only begin moving after they appear on my screen. Is there any way I could change this so that it the enemies have continuous movement whether they are on my screen or not?

I've noticed that with moving enemies, they only begin moving after they appear on my screen. Is there any way I could change this so that it the enemies have continuous movement whether they are on my screen or not?

Attach this to the enemies (picture)

Finally got it to work, thank you!

Your welcome!