To mark fields as required...

1. Hover over the field you want to mark as required
2. A red "Required"? checkbox will appear; Click on it to mark the field as required
   
3. Click Save.

To move or resize a field...

1. To move a field, hover over it and a grey tab will pop up on the top edge, shown here:
   
2. Grab and drag the grey tab with your mouse to move the field
3. To resize a field, grab and drag the bottom right corner of the field with your mouse to make the field wider / narrower / larger / smaller
   
4. Click Save.

To delete a field...

1. Click on the white "x" in the black circle to the right of a field to delete that field
   
2. Click Save.