Copying elements across different files with OpenRoads Attributes

we started a project with multiple files, but the work was not assigned the way we will need it to be for deliverables

so now we have figured out the best way to split up the models, and need to copy disparate elements (along with all the rules/relationships built in) from different files into another file. So far it's only planametrics with horizontal and vertical geometry offset from a BL. The 3-D model hasn't been started yet.

We havent progressed too far but would like to minimize as much re-work as possible. Ideas? Suggestions? anything?