Setting second & third level bullet style in PowerPoint

Hi,

We are in need of a Applescript for changing the First Level Bullet list followed by 2 tabs to be changed as second level bullet in PowerPoint

For example,

  • Follwed by 2 tabs and then followed by text
    • This should be changed as second level bullet

Is there any way to do this in powerpoint using applescript.

Thanks,
Mani