I understand that you want to align the edit field boxes one below the other without using a blank in the label field. The EditField Properties control the appearance and behaviour of an edit field. Specifically, the Position and Layout properties of EditField might help you reach you to your desired solution.
To know more on how to use the properties you may refer to the below example:
Example :
% This code works when you want the edit field to be at the position [40 20]
>> pos = [40 20 100 150] % where the syntax is [x y width height]
For more information refer to the following link on EditField Properties which might be helpful to you:
Additionally, the Edit Fields created using ‘’appdesigner’’ in MATLAB may be easier and more flexible for customizations.