Thank you for your explanation, that makes sense :)
I tested your method and it works great! I'm still debating on whether to change patterns manually through common events or just use bigger sprite sheets. It might be better for the performance to have a few extra poses in my sprite sheets instead of calling for common events every time I want a character to blink. But thanks to you, I can actually choose which method I prefer!
Also I hadn't noticed your Character Manager plugin, so thanks for pointing it out. It has some very useful features so I'll be sure to download it!