When selecting a guest for a new reservation, a pop-up window automatically appears with information from the guest data memo field (if filled). It can be closed using the enter key or the mouse. If the memo text is already in use for billing information, no pop-up appears when creating a new reservation. If you still want to show it when creating a new reservation, you can do this by using '##NEW' at the beginning of the memo text. Independently of this, you can use '##NEW' to split the memo text (end '##') and only display part of it in the pop-up. A text that begins with '##' does not generate a pop-up.