In more detail
Themescape has Parent modes as well as Interaction settings. Code is the mode for working with your coding; Build is for constructing a final figure. In Build, each Figure style, Node network, Hierarchy or File tree, becomes a starting layout, and the build tools let you move anything, change node and branch shapes, add arrowheads and influence signs, frame linked factors and add notes.
Build mode is in beta. It works, and it is still being tested, so its controls may change.
In Themescape
Choose Build as the Parent mode, pick a starting layout from Figure style, and shape the figure in Work mode. Export figure opens Figure export, for a PNG, JPG or vector PDF, and Save layout keeps the figure in the layout file, which holds names and positions only, never quotes.