Help modifying a seed file

Hello,

I created a seed file but I am having problems modifying the working units advance settings to 1.000 per dist foot

1.7091E+ 008 miles 

81.3442 mass

4.29497E-006 Feet

Can any fix this for me I tried this but this never saved after the change was made.

Thanks

Microstation V8i (SELECT series  3) - Version 08.11.09.578