Group Fields Together

Not sure if this is already a feature somehow but I would love to be able to group a set of fields together. 

For example, if I have 6 fields that make up a set of info (eg bag dimensions), and I only want them to show if an earlier choice field is set to "Bags", then I could then just do the 'show if' formula once... rather than on each of the 6 fields.

It would also be great if those group fields could be moved as once piece rather than having to move each one individually (eg you want to move an address field further down the form)