About multi-window synchronous control(input 3D model *.obj)

In my project, i will created multi-windows via openGL.
The created multi-windows is ok, but when i loading 3D model (*.obj) into project.
In multi-windows can show the 3D model, but i use mouse move 3D model, the windows object can’t synchronized actions.
If you understand my question, please give me some suggestion.