If you download SNL 2.0.0.8 and see the release notes, migration mode is explained. In fact, there's a readme in a 'migration' folder that explains how I do my migration, although rather cryptic. Migration mode is the capability to use a Marantz RC9200 input CCF and generate an RC9200 output CCF (that can be imported into PENG or PPENG) but performs screen layout in such a way that when the CCF imports into PENG/PPENG, graphics are positioned to the user area of an NG screen and has dimensions of 240x253.

See here...

[Link: remotecentral.com]