Gravity Bow Adjustment not working????
 

When i choose the gravity bow spell adjustment, the drop down to select your bow says nothing to select....

Is it supposed to show our equipped bows so we can choose one or are we to keep track of the extra damage die from gravity bow outside of hero lab?

All adjustments have a drop down currently even if they don't need one. So that bug is already reported. But the Gravity Bow adjustment not working is a different bug. You should report it using the Bug Reporting tool instead of posting in a individual thread where it will get lost.

This bug's already been reported and fixed, just so you know.