3a06071c_er__Tally__ERP_9_Shortcut_Keys__Functionality
[Key] ALT + I [Availability] At List of Vouchers – inserts a voucher before the one where you positioned the cursor and used this key combination. At creation of sales and purchase invoice [Functionality] 
To insert a voucher To toggle between Item and Accounting invoice
Help for All Tally user: Tally .ERP 9 Shortcut Keys
Functionality