3a06071c_er__Tally__ERP_9_Shortcut_Keys__Functionality
[Key] CTRL + L [Availability] At Groups/Ledgers/Cost Centres/ Budgets/Scenarios/Voucher Types/ Currencies (Accounts Info) creation and alteration screen At the creation and alteration of Vouchers [Functionality] 
To select the Ledger To mark a Voucher as Optional
Help for All Tally user: Tally .ERP 9 Shortcut Keys
Functionality