Draw Line between two lines at a specific distance

You mean like this?

https://communities.bentley.com/cfs-file.ashx/__key/communityserver-discussions-components-files/273/example.swf

You can also use Accudraw. If you start the Line or SmartLine command with Accudraw on, You can snap to point A then (make sure Accudraw has focus) type RE (Rotate to Element) Accudraw compass should rotate to selected element then use keyins for distance/angle (or distance XY depending on Accudraw setting) and second data point to place the line.

You can also use Accudraw. If you start the Line or SmartLine command with Accudraw on, You can snap to point A then (make sure Accudraw has focus) type RE (Rotate to Element) Accudraw compass should rotate to selected element then use keyins for distance/angle (or distance XY depending on Accudraw setting) and second data point to place the line.

how do you place any length line midway along an alignment between the elements in the featured example...

I think I can do it in accudraw with O  on first point snap centre then o again send line centre snap then  mid point snap? on what what if I want my line 10units long .. too hard easier to draw line  centre to center draw circle 5r at center point on horizontal line and trim line to circle  then delete circle  yes its old school but one has total  confidence its perfectly correct..