Yes I know, import/export and backup/restore tools, thats work if IDE version is same, I mean Export/Backup Seattle and can just Import/Restore to Seattle. I wanna use this XE2 to Seattle or Berlin.
for IDE, (from xe8) has migration.exe and this delphi standart tools. Its clearly export and import IDE "ALL" settings. Between delphi versions. I wrote that in my first message.
Yes, you rigth, its not easy. I just suggestion
But maybe resgistry root keys can change, and move it under "BDS/xxx" so migration.exe can access it.