In this menu-point you can insert an account. You can do
it during booking, too. In Chapter 5.1 of the description 
this box will be declared detailed.
 
Additionally to the normal keys of a dialog-box you can close
this box with <ESC>. The <RETURN>-key (on the
numeric-keyboard, too) has two different functions. At first
it works like the <TAB> key. The "Insert" button will be 
framed simple. If you are in the text-field, this button is 
framed double. Now the <RETURN> key insert the new account.

The Dialog box doesn´t close after inserting a new account.
So you can enter some new accounts, one by one. You can close
the box by using the "Cancel" button. All values which stay 
in the mask will be deleted in this moment.