You have a couple of choices then (IMO). You could create a custom component that could be dragged & dropped from your Adaptive From component list. Or a much simpler approach, create all of your standard items in your form, then when complete, turn each of the elements, or groups of common elements into Form Fragments. All those fragments could be used across all your form sets. In particular, very useful for headers, and common sections of forms that you need to be consistent.
To create the fragment, simply select the panel, then select "Save as Fragment".