Custom fields ensure that you get to collect specific, relevant information to know more about the issue and the customer as well. It’s very much possible to make multiple custom fields dependant on another custom field for precise data collection.
At any time, you have the option to change the order of custom fields you have created with simple drag and drop action. Do note that when you reorder a custom field with dependent fields associated with it, the entire unit is moved. However, the dependent fields can be reordered within the unit by simply dragging and dropping. Now, how cool is that!