Android Nexus 7 + OTG + File transfer from camera

random2

Adept
I am not sure why this is soo hard to do.
I have a Nexus 7 and when outside, I want to do the following -
1. Connect the camera to the tablet using OTG
2. Transfer few files to the tablet
3. Edit (crop/reduce size)
4. mail them

I got the OTG cable and the issue is it directly opens up the gallery. There is not much of any flexibility on what I want to do.

I tried 'Nexus Media Importer' but it does not recognize the camera nor even a usb stick that I tried.

Any inputs would be really appreciated. TIA
 
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