i want to add collaboration tab with ms teams to my csm workspace

[vits18735a0]

i want to add the ms teams to my csm workspace, how to get it. 

in sow we have the same ms teams under collaborate tab, i want to replicate the case in csm workspace. 
how to get it. 

this is the story : 

AC1 : Collaboration Tab Shows Teams Chat Option
Given: I'm GCF agent,
When: I open a GCF case with Contact Type = Internal in the workspace and i navigate to Collaboration tab,
Then: I see the names of people associated with the case listed in that section and can start a Microsoft Teams chat with them.
list includes:
Internal Stakeholder who initited the case
GCF Analysts who are members of the assignment group the case is associated with.

AC2 : Teams Chat Initiated
Given: I'm GCF agent on the Collaboration tab of a GCF case, with Contact Type = Internal
When: I click the Teams Chat button,
Then: a Teams chat with the selected person is initiated in Microsoft Teams, and the chat title is: TBD.

AC3:  Activity Stream Records Chat Start 

When a Teams chat is started from the case,

Then: out-of-the-box activity entry is recorded in the case activity stream.
Example: AAAA started Microsoft Teams chat conversation with bbbb and CCCC

AC4: Open Active Chat in Teams
Given I'm GCF agent and a Teams chat is already active on the case,
When: I open the GCF case and click the Collaboration tab,
Then: I can open the existing chat by clicking the Open in Microsoft Teams button.

AC5: Given: I'm GCF Analyst and i navigate to GCF case in the workspace

and Teams chat has been previously initiated

Then i can see the following text in the activity stream : You can find the chat record here

And upon clicking on here i can see the team's chat details including the chat conversation.