4.Flash Test Group Setting (Test + GP SET Button)Set flash testing groupType C camera uses the set firing group.Setting91. H o l d d o w n [ Te s t ] b u t t o n t h e n t h e g r o u pindicators will keep lighting, the flash on the receivergroup having been selected will be woken up(p.10).2. Hold down [Test] button and repeat to shortlypress [GP SET] button, selected groups of receivers totesting flash, and there are totally 7 combinations.3. When loosening [Test] button, the flash of the grouphaving been selected will fire a test flash(p.10).※ Testing group is different from iringg r o u p s e t t i n g o f t y p e A c a m e r a r e f e r t opage 18 while page 22 for type B.firing group, f