Hi Mishu,
1. I was able to reproduce what you are seeing in the latest version 08.11.09.878. I filed this as defect 651638: Evaluation > Hydrology and Hydraulics > Pass through Contours > cannot key in elevation. In the meantime you could use this as your workaround... Go to Surface > View Surface > Contours. Under the Main tab set the interval to 1.0. Under the Advanced tab, set the High and Low elevation to the same elevation to display a contour at that elevation.
2. Could you provide me with a specific example where the mouse isn't functioning like you would expect?
1. I was able to reproduce what you are seeing in the latest version 08.11.09.878. I filed this as defect 651638: Evaluation > Hydrology and Hydraulics > Pass through Contours > cannot key in elevation. In the meantime you could use this as your workaround... Go to Surface > View Surface > Contours. Under the Main tab set the interval to 1.0. Under the Advanced tab, set the High and Low elevation to the same elevation to display a contour at that elevation.
2. Could you provide me with a specific example where the mouse isn't functioning like you would expect?