Custom Geo coordinate system drop down list (Sub Options) Not Showing.. Why?

Dear All,

I want to export horizontal alignment to Google earth. I have copied  the custom GDM2000.dty (for Selangor, Malaysia) file in C:\ProgramData\Bentley\MX V8i\WorkSpace\Standards\datain then added this path to MS_GEOCOORDINATE_USERLIBRARIES (UCF) in Configuration in Workspace menu. After that I restarted my MX Road_SS-2. But iam not getting the drop down (sub options) to select the Coordinate system.

I have done the same procedure as shown in the below link.

https://communities.bentley.com/products/geospatial/desktop/f/bentley-map-forum/101391/custom-a-new-coordinate-system-in-bentley-map-v8i/301081#301081

Requesting you to please suggest me some solution to resolve this issue.