Hi Zero Zero
I think if you copy the preferences from the Cubase 7 to the 7.5 folder most of your setup will be copied. The preferences are at c:/Users/Username/Appdata/Roaming/Steinberg . At this point there will be a folder for C7 and one for C7.5, copy whatever you need from the 7 folder to the 7.5 folder and that should do it!!!
Best Regards
Dave