DSS are instances of Data-Admin-System-Setting class and values can be explored using Obj-open-by-handle method.
For example values can be extracted for the mentioned DSS using Obj-Open-ByHandle with handle key "DATA-ADMIN-SYSTEM-SETTINGS PEGA-RULES!USAGE/USAGETRACKINGENABLED" and then use .pySetting value from opened page to get the value.
Thanks Ujjwal for your time. But, i would like to avoid writing acitivity for this and trying to achieve using Linked property. Because , i saw an article where in the below they are using linked property to get the email address . I am not sure whether we can achieve similar kind here.