For a while I've been using a Yongnuo YN-622C transceiver in combination with a 430 EX II on my EOS 70D. Everything works fine so I decided to buy a second 430 EX II and another pair of YN-622Cs. This also works fine when both speedlites use the same configuration.
Now I want to try different flash settings (for example in terms of flash power) but I can't find a way to activate the group settings in my EOS.
Does anybody have experience with EOS 70D (/60D) in combination with YN-622C? Should there be some "wireless flash" option beside the "optical remote" option? I hope there is no incompatibility.