7961f0d2___Accounting_and_ERP_Solutions__Availability
[Windows] ALT + A [Functionality] To Add a voucher [Availability] 
At List of Vouchers – adds a voucher after the one where you positioned the cursor and used this key combination.
Short-cut keys or keyboard shortcuts available in Tally ERP9 | TallyDirect - Accounting and ERP Solutions
Availability