Could not find interactive markers for dual-arm group in MoveIt!

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Hi guys!

I use MoveIt! for motion planning for my dual arm robot. There are three groups.Group "left" stands for left arm.Group "right" stands for right arm and Group "both" includes Group "left" and Group "right" as its subgroups. I launch the demo.launch which auto generated by setup-assistant. I choose the Group "both" but can not find the interactive markers as shown below:

But I choose the Group "right" and Group "left", the interactive marker exists. I find PR2 has the interactive markers when planning for both arms. I wonder why I cannot find the interactive markers when planning for both arms

sorry for my poor English! Thanks if anyone could help!