Optical/Radio AWL
Optical and radio AWL can be used together. Radio flash control is provided by a WR-R10
connected to the camera, optical control by an SU‑800 wireless Speedlight commander
or an SB‑910, SB‑900, SB‑800, SB‑700, or SB‑500 flash unit mounted on the camera accessory
shoe. 
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Before proceeding, establish a wireless connection between the radio-controlled flash units and the WR-R10 (Establishing a Wireless Connection).
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If an SB‑500 is mounted on the camera accessory shoe, select [] for [] > [] in the photo shooting menu; with other flash units or the SU‑800, this option is selected automatically.
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The only option available for [] will be [].
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Choose a group (A–F) for each of the remote flash units. Place optically-controlled flash units in groups A through C and radio-controlled units in groups D through F (to display options for groups D through F, press 1 or 3 in the [] display).
