How do I control separate enemies of the same instance?

Hi All, I trying to insert an enemy into my project but I want each enemy to shoot at different rates. I've created an Instance Variable called ShootTime that I can change per instance but I'm having trouble getting it to fire correctly. In it's current form every Enemy shoots at the same ShootTime referenced in my first Enemy placed on the layout.

I know I can get it working if I clone the enemies but I feel like there has to be a more efficient way of doing this?

Thanks for the help!

Welp, looks like I was able to achieve it with a Timer and the ShootTime Variable. If anyone has a more efficient way of doing this I'm all ears.

Thank you!