Tips for positioning far apart objects of different sizes

Hi,

I have a use case where I have a mesh object (1mm^3), and a skeleton object (1um^3), which are far apart and not visible in the default 3D view. Either one or the other could be seen from adjusting the scales (zoom-in/zoom-out level) and the center position. Not both objects in the same view. If I want to position this very small skeleton object inside a mesh object, let's say position at (0,0,0) so that both objects are visible, what are the UI control tips for repositioning these objects? The goal would be to put a tiny skeleton inside a big mesh object.

One approach I thought might be modifying the JSON state to position to [0,0,0], and then move smaller object. Although, it seems like both objects' positions are synched and they don't overlay. I used Shift+Mouse-drag for UI control. Are there ways to position all objects in a specified spatial position from GUI? Any tips?

Thank you,
-m