Positioning a subtool scene in a high resolution document for print can be sticky/ tricky as it place higher demands on your computer. It's therefore far quicker to position your scene and find your composition at a lower resolution document size then use a marker to record your subtool scene's position before you upsize your document for print/ image output .
Covered in this tutorial:
1, using markers to split subtool components to 2.5 layers for quick texturing
2, the artistic advantages of splitting subtool components to 2.5D pixol layers for baking lighting
Note: using markers is an old ZBrush 2.5D positioning method - this was prior to being able to mark viewport/ canvas positions with Document> zapplink >custom positions and saved views which allow you to upsize documents and subtools positions in proportion by recalling saved views for your chosen subtool scene for bpr rendering . Markers are also prior to using the timeline keyframes to quickly store multiple views of subtools (in edit mode) to judge the best composition positions before committing to a Zapplink saved custom views.You can also use these more recent techniques to place 2.5 D objects by merely exiting edit mode to commit 3D to pixols.