Combine video clips without nesting/losing flexibility

Hi, the Panasonic GH4 outputs multiple clips when recording continuously- on a timeline it plays back seamlessly. However, I want to combine them into one clip for color and motion control purposes. Nesting puts the clip at 100% so you can't punch in without losing quality, and you can't zoom out once it's been nested.

Is there a workaround/ solution you would suggest besides exporting as 1 clip and re-importing into the project?

Thanks