You can apply the same mapping method to multiple objects in unison, for example a Planar map applied to several objects at once. This will not link them all to the same one planar widget though so be careful to make sure you select all of the widgets at once if you want them to stay identical when editing. I don’t know if Vray has anything specifically for this that might work better.
Another way that may help is to have one material applied to multiple objects with different UV mapping settings and then edit the material’s texture repeat settings. I’m not sure what the changes are specifically that you want to make and have propagate across the different objects though so this might not be what you’re after.
And there is WCS mapping of course too.