3a06071c_er__Tally__ERP_9_Shortcut_Keys__Functionality
[Key] ALT + A [Availability] At List of Vouchers – adds a voucher after the one where you positioned the cursor and used this key combination. Alters the column in all the reports which can be viewed in columnar format [Functionality] 
To Add a voucher To Alter the column in columnar report
Help for All Tally user: Tally .ERP 9 Shortcut Keys
Functionality