Change Current Company button

Hi

I have made a custom dashboard in my tally.

I wish to have the Change current company button (F3) added so that I can change companies without having to go back to back to gateway of tally.

Is there a code I can add to get the button to appear?

 

Add : Button: Change Company

 

Thank Bipin,

I got this working to change the company however I am unable to get balances of individual companies.

Will explain what I mean

I have a group company XYZ consisting of CompanyA, CompanyB, CompanyC

I am preparing a report where I can get Intercompany balances of
Company B and C in Company A
Company A and C in Company B
Company A and B in Company C

Company A Company B Company C
Company A 0 -100 -20
Company B 100 0 10
Company C 20 -10 0

As of now, I am using the below system formula but this is giving me the OVERALL balance of B ie. 120

Code:

[System:Formula]
    BalanceB    : $ClosingBalance:Ledger:"Company B"

is there a way to select the company A and give the balance as 100