Planning board at project level

Hi All,

I was trying to view project planning board from 'CJ20N' by selecting project but when I select project, no button is shown for planning board.That button is shown at WBS level so when I select WBS and press planning board button, only project and WBS is shown with no network and activities. I have check all config of planning board but still it's not displaying. Please tell me what I'm missing. Below is the screen shot:

Regards,

Faizan