Thanks for the response @Raksha125 .
In my PDI I'm unable to see the assignment groups and agents in Dispatcher workspace also Assignment groups and agents in workspace Aswell. I came to know to access them we need- com.snc.workforce_management  and com.sn_fsm.workforce_optimization -can't we access the above-mentioned features without these, as they are not available in PDI plugins or those are paid ones? requires licensed version.
To learn the FSM especially these work assignment, agents, dispatchers and maps is there any way to access them if it's not licensed.