You can add a command button to your form, but you cannot put it into your combo box or drop-down list. Add a button to your form, name it btnAddNewRecord, and use this code:
Code:
Private Sub btnAddNewRecord_Click()
On Error GoTo Err_btnAddNewRecord_Click
'Open a new Order
DoCmd.GoToRecord acDataForm, "YourFormName", acNewRec
'Move to the first Control on the form
DoCmd.GoToControl ("YourFieldName")
'Add some error handling
Exit_btnAddNewRecord_Click:
Exit Sub
Err_btnAddNewRecord_Click:
MsgBox Err.Description, vbInformation, "Error"
Resume Exit_btnAddNewRecord_Click
End Sub
Simply enter the form name you want opened, and the field name you want the cursor placed in (it will default to the first field if you don't use this part, but why take a chance)with the brackets and quotation marks.
Wayne