Sections within Sections or Sub-Sections

Description - On Custom Forms it would be great to have Sub-Sections. 

Why is this feature important to you - Need to group data and or hide multiple fields within a section

How would you like the feature to work -They would have the overall behavior of the main section but then could have additional subsection attributes such as Display Logic. Thus if the Parent Section is skipped then this whole sub-section is skipped but otherwise its logic is layered on top of the Parent Section. Same goes with Access Rights

Current Behaviour - not possible