Hi @Kaustubh k 

Create a new function in the ClientUtils() script include and pass the action parameter to the manageGroup function.

Example script
manageGroup: function(action)

{

if (action === 'Add Members')

{

return this.addMembers();

} else if (action === 'Remove Members')

{

return this.removeMembers();

}

},

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Thanks
Eshwar