[U17] MS_CONFIGURATIONOPTS obsolete?

So is MS_CONFIGURATIONOPTS no longer works the way it supposed to starting from U17? The variable usage is still available in U17 help:

https://docs.bentley.com/LiveContent/web/MicroStation%20Help-v21/en/GUID-91AE65DE-BC4A-398D-3741-E98D25ACFDC7.html

Allows you to control the creation or selection of WorkSpaces and WorkSets from the respective drop-down lists in the Work page. Following are the options for this configuration variable:

• None (Default) - If undefined, you can create WorkSpaces as well as WorkSets.
• DisallowCreatingWorkSpace - Disables the Create WorkSpace option in the WorkSpace drop-down.
• DisallowCreatingWorkSet - Disables the Create WorkSet option in the WorkSet drop-down.
• DisallowSelectingWorkSpace - Disables the WorkSpace selection drop-down.
• DisallowSelectingWorkSet - Disables the WorkSet selection drop-down.

How can CAD admins reinstate the function of MS_CONFIGURATIONOPTS in U17? 

Best regards,

Tuan Le