Step 1: To manage tables' fields, on the table page, Click Add Field Tab.
Step 2: To add a common field, just click on it
Step 3: To add a non-common field, add the field name
Step 4: Choose input type that suits your field
Step 5: (optional) Set the validation rules
Step 6: (optional) Set where you want the field to appear
Step 7: (optional) Set the default values
Step 8: Set the fields extras if required
Step 9: Click on the Add button
Step 10: You can add new or click Fields to see the added fields
Step 11: To view or edit a field, click on the field's name
Step 12: View or edit, save any changes, then click close to go back to the fields list