Here is the ArchiCAD 17 Migration Guide for AC 9:
http://helpcenter.graphisoft.com/guides/archicad-17-int-reference-guide/migration-guide-for-archicad...
And here is the PlotMaker-specific part:
http://helpcenter.graphisoft.com/guides/archicad-17-int-reference-guide/migration-guide-for-archicad...
But it is also possible to copy Master Layouts from one project to another (AC10 and later). Here is how:
Open the Organizer Palette. On the right pane, display the Layout Book of your Project.
Now, click the Project Chooser button in the upper left corner of the Organizer and activate the Browse Project command. Then locate your other PLN file and open it. Its Project Structure will be displayed in the left pane of the Organizer. (You can open PLA files, even earlier version files)
Now, switch to the Layout Book in the left pane, select the Master Layouts you need and simply drag-and-drop them to the right pane, to the Layout Book of the current project.
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