I want to create dimensions in paper space that snap to the model in a viewport, but it seems I can't esnap to the model. Is this possible? I can do it in AutoCAD.

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Regards,
Bill

Can't do it in Icad. Wish the would change that.

I hate working with others' files when they've done that, don't mind them not being able to one bit. You could use Xclip, I find it more straightforward and you can snap to xrefs in model space.