Edit the Bands Page Layout

Adding the Band Tab was no problem, but changing the page layout by dragging fields does not work.

Click on the Bands Tab.

Open an existing Band record so you are viewing (not editing) the contents on screen.

Look for the "Edit Layout" link in the menu (it's pretty small text in the upper right part of the screen)

Once you have the edit layout screen open you can drag fields from the top menu area and position them down below on the screen or drag existing fields around to arrange them differently on the screen.

Don't forget to click Save when you are finished!