Display Drop down list in combo box

`Alt` + `Arrow Down`

All hotkeys for Quickbooks Desktop (Windows)

Access Main Functions / Windows Company - home	`Alt` + `C` , then `Enter`
Access Main Functions / Windows Customer Center: Customers & Jobs list	`Alt` + `U` , then `Enter` (or `Ctrl` + `J` )
Access Main Functions / Windows Vendor Center	`Alt` + `O` , then `Enter`
Access Main Functions / Windows Employee Center	`Alt` + `Y` , then `Enter`
Access Main Functions / Windows Report Center	`Alt` + `R` then `Enter`
Access Main Functions / Windows Customer Center - Create Invoice	`Ctrl` + `I`
Access Main Functions / Windows Use Register / select account	`Ctrl` + `R`
Access Main Functions / Windows Write new check	`Ctrl` + `W`
Access Main Functions / Windows Open memorized transaction list	`Ctrl` + `T`
Access Main Functions / Windows Open transaction journal	`Ctrl` + `Y`
Access Main Functions / Windows Open Chart of Accounts	`Ctrl` + `A`
Access Main Functions / Windows Close active window (or ctrl+f4)	`Esc`
Access Main Functions / Windows Go to next / go to previous Window with multiple sub-windows open	`Ctrl` + `Tab` / `Ctrl` + `Shift` + `Tab`
Chart of Accounts Open Chart of Accounts	`Ctrl` + `A`
Chart of Accounts Go up one line / down one line	`Arrow Up` / `Arrow Down`
Chart of Accounts Go to beginning / go to end of account list	`Home` / `End`
Chart of Accounts Type name of account to select automatically	`A` … `Z`
Chart of Accounts Open Register (for asset, liability and equity accounts)	`Ctrl` + `R`
Chart of Accounts Open Quick Report for item	`Ctrl` + `Q`
Chart of Accounts Edit Account	`Ctrl` + `E`
Chart of Accounts Use Account	`Ctrl` + `U`
Chart of Accounts Delete Account	`Ctrl` + `D`
Account Register Shortcuts Up one transaction / down one transaction	`Arrow Up` / `Arrow Down`
Account Register Shortcuts First transaction/ last transaction	`Ctrl` + `Home` / `Ctrl` + `End`
Account Register Shortcuts Toggle between 1-line and 2-line view	`Alt` + `1`
Account Register Shortcuts Open drop-down to select account	`Alt` + `down arrow` with drop-down field available
Account Register Shortcuts Open list (e.g. Chart of Accounts when in Account Field)	`Ctrl` + `l` in drop down field
Account Register Shortcuts Record Transaction	`Alt` + `d`
Account Register Shortcuts Copy check transaction (complete line)	`Ctrl` + `o`
Account Register Shortcuts Paste Transaction	`Ctrl` + `v`
Account Register Shortcuts Delete Transaction	`Ctrl` + `d`
Account Register Shortcuts Memorize transaction or report	`Ctrl` + `m`
Account Register Shortcuts Edit transaction selected in register	`Ctrl` + `e`
Account Register Shortcuts New invoice, bill, check or list item in context	`Ctrl` + `n`
Account Register Shortcuts Show / hide transaction details	`Ctrl` + `s`
Account Register Shortcuts QuickReport on transaction or list item	`Ctrl` + `q`
Account Register Shortcuts Open Quick Report for item	`Ctrl` + `q`
Account Register Shortcuts Go to register of transfer account	`Ctrl` + `g`
Account Register Shortcuts Show History (for Accounts Payables / Accounts Receivables transactions)	`Ctrl` + `h`
Working with Date Fields Change to next day / previous day	`[` + `]` / `-`
Working with Date Fields Change to Today	`t`
Working with Date Fields Change to same date in previous week / same date in next week	`t`
Working with Date Fields Change to same date in previous month / next month	`;` / `''`
Working with Date Fields Change to first day of the week / last day of the week	`w` / `k`
Working with Date Fields Change to first day of the month / Last day of the month	`m` / `h`
Working with Date Fields Change to first day of the year / Last day of the year	`y` / `r`
Working with Date Fields Date calendar	`Alt` + `Arrow Down`
Quick Reports On any applicable item: open Quick report	`Ctrl` + `q`
Quick Reports Go up / go down one line	`Arrow Up` / `Arrow Down`
Quick Reports Show item detail / QuickZoom on report	`Enter`
Quick Reports Hide/ show header	`Ctrl` + `a`
Quick Reports Print report (or alt+t)	`Ctrl` + `p`
Quick Reports Change Date Range of Report	`Alt` +d, then `down arrow`
Quick Reports Email report as Excel or PDF	`Alt` + `i`
Managing Invoices Go to previous / go to next invoice	`Alt` + `p` / `Alt` + `n`
Managing Invoices Print invoice (or alt+t)	`Ctrl` + `p`
Managing Invoices Jump to next / jump to previous invoice field	`Tab` / `Shift` + `Tab`
Managing Invoices Save and close	`Alt` + `a`
Managing Invoices Save and New	`Alt` + `s`
General Editing Next field / previous field	`Tab` / `Shift` + `Tab`
General Editing Beginning of current field	`Home` / `End`
General Editing Line below / line above in detail area or on report	`Arrow Down` / `Arrow Up`
General Editing Down one screen / up one screen	`Page Down` / `Page Up`
General Editing Next word / previous word in field	`Ctrl` + `Arrow Right` / `Ctrl` + `Arrow Left`
General Editing First item on list / last item on list (or first/previous month in register)	`Ctrl` + `Page Up` / `Ctrl` + `Page Down`
General Editing Close active window (or ctrl+f4)	`Esc`
General Editing Display Drop down list in combo box	`Alt` + `Arrow Down`
General Editing Delete character to right of insertion point	`Delete`
General Editing Delete character to left of insertion point	`Backspace`
General Editing Delete line from detail area	`Ctrl` + `Delete`
General Editing Insert line in detail area	`Ctrl` + `Insert`
General Editing Cut selected characters	`Ctrl` + `x`
General Editing Copy selected characters	`Ctrl` + `c`
General Editing Paste cut or copied characters	`Ctrl` + `v`
General Editing Increase / decrease check or other form number by one	`[` + `]` / `-`
General Editing Undo changes made in field	`Ctrl` + `z`
The Rest To start QuickBooks without a company file	`Ctrl` while opening QB
The Rest To suppress the desktop windows (at Open Company window)	`Alt` while opening QB
The Rest Open Help	`F1`
The Rest Close Help	`Alt` + `f4` with Help Active
The Rest Close Quickbooks	`Alt` + `F4`
The Rest Simple and Advanced Find	`Ctrl` + `F`
The Rest Open Search	`F3`
The Rest Display Service Keys (license and tax numbers)	`Ctrl` + `K`
The Rest Get Payroll Updates	`Ctrl` + `Shift` + `U`
The Rest Display product information about your QuickBooks version	`F2`
The Rest Open Tech Help	`Ctrl` + `2` in Product Information