Richard should probably tune in here! There are a ton of DWG tree files of this type all over the internet. Download > drag into SU > compile > drag SU file to LayOut page > vector > explode > ungroup > you may need to run the join tool around > set outline and fill > save as scrapbook.
Be mindful you can have some really heavy geome'tree in Layout as a result!
The beauty is that you have both, a nice set of trees that match for use in both SU and LO.
