Custom Number Display Format in Looker Studio (Formerly Google Data Studio)

[Munavvar21]

Can someone please help, how can I replace Million and Billion notations (M & B) to Lacs and Crores notations like L and Cr for metrics and dimensions in Looker Studio.  I have shared screenshot below and also shared from where we can change this but I don't know how to use formatting styles. Please help me!

want to change K, M & B notations to L and Cr

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