Is there any way to "nest" my audio tracks?

I needed to use multitrack audio for this concert doc.

But usually I don't need to see this many audio channels in my mixer.

thank you in advance.

Can any be combined as stereo pairs? At least you'd halve the number of tracks. 

You could, potentially, even assign them as 7.1 tracks and reduce the number accordingly... then split to mono when you need to mix. 

Otherwise edit with a guide mix and then use Field Recorder Workflow in protools to link to the seperate tracks?