Synchron viewport panning?

I often have to compare 2 drawings to see the changes.

I xref one dwg into other and split vp into 2 viewports.

I would to center same plan on both viewports.

Now I would like autocad that if I pan/zoom thing in one viewport

it does the same movement in the other viewport - to pan/zoom

viewports synchronized that I always see the same details of a plan.

Is it possible ?

I think that the only workaround is to move the content (if possible) instead of panning. Place two references (i.e. points), one in a locked layer, to use it to relocate content after inspection.

Regards,