Help with setting up a shortcut key

Hello there

I apologise if i have posted this in the wrong section
Im having problems tryn to figuire out how i could add “disply only render” with a shortcut key that i assign.
This pic shows what i mean:



I have already added a key to toggle in and out of sculpt mode but im not sure what i would add within the highlighted box to beable to toggle the disply render and even if the new shrtcut would be added in “object non-modal” section
any help would be appreciated.

wm.context_toggle to the highlighted field and set attribute to space_data.show_only_render

Edit: wm.context_toggle was observed from other keys and the correct attribute I found like this http://www.blenderartists.org/forum/showthread.php?351344-Customization-questions-from-a-Blender-curious-2d-3d-artist&p=2757003&viewfull=1#post2757003

Brilliant man! worked like a charm
Thank you for your help and the quick response, these 2 shrtcut keys will really speedup the workflow when sculpting with a tablet.

Cheers