Form templates

Form templates

Is there a plugin or any way we can make templates more dynamic and visually pleasing?

We would like to group fields (either by adding spaces or borders to go across the template horizontally).  Some of our forms require users to answer questions and depending on the requirement, it would expose more fields.  Whilst we have done this, we have the issue of the fields moving within the template.  

Is there any way to set the tab sequence?

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