I usually follow the approved method when creating SU windows within LO by first creating a scene in SU. It’s then easy to import and adjust scale. However, you don’t always want to produce an SU scene for every little detail that appears in LO. Often, it’s simpler to copy an existing window in LO and alter the scale. That works fine if the scale difference is modest, but if it’s large all you tend to end up with is a blank window because you have homed in on a void area of the drawing. Trying to find the bit you want to show then becomes very hard. It might help if one knew what point in the drawing LO uses to scale up from as you would have an idea in which direction to travel. I am sure it must be standard but I have not worked out what it is. Does anyone know?
Of course, you can make things easier by double clicking the window and zooming and panning, but as DaveR often points out, that modifies the window and breaks the link so it’s best avoided.