Help with enemy movement

Hello! So, I am in a predicament, I am new to Construct 2 and have only been using it for about a month or two, glancing at forums and the manual when need be. I have been unable to find help with my current problem however. Basically, I am working on a simple game where infinite waves of enemies parachute in from the top of the screen. I recently found that the player could look up and keep shooting and never die as the enemies would go towards the player even when in air. So I wanted to make it so the enemies only chase after the player when they have touched the ground. No matter what I tried, I can't seem to get it. Help? [:s] Also, how do I zoom in on the player so you can see less of the screen?

It's hard to help not knowing exactly how your game is setup.

You could add the Platform behavior to the parachuting enemies (set default controls to no) and make the ground a solid. Then use the Platform Is On Floor event to trigger a new movement for the enemy.

Or

On collision with the ground, then do the action for the movement change.

I'm not sure if that is what you are asking though.