What's the most efficient way to make custom color grades in FCP iPAD?

I have a timeline with mutliple clips strung together. I'm looking for a way to efficiently color grade them. The stock efects on the right don't look good in this case but I'm getting nice results creating custom color grades in the effects stack in the inspect panel on the left.

But if I have to copy and paste clip by clip that's going to be time-consuming. I was wondering if maybe theres a bulk way to color grade? Or maybe I cut copy and paste to a group of clips (don't know how to do that)? In Premiere Pro, for example, I can create an adjustment layer or match a frame from another clip.

Anyway, if someone would be kind enough to give a newbie some insight into the fastest, most efficient way to make custom color grades in FCP iPAD I would really apreciate it!