Offset two polylines away from eachother

[Shablab]

Basically, I want to select two objects, and have them displaced the same amount in opposite directions from a set point without having to do the offset command in the case that the distance may be an odd or unknown value.

 

To summarize, I have two polylines and want to offset them away from eachother using either a typed in distance or a "point-to-point" distance like the current offset command.

[Jord_91]

You could try this Program from @Lee Mac 

http://www.lee-mac.com/offsetpolysection.html

Or this one 

http://www.lee-mac.com/doubleoffset.html