Window Overview in this window in this windowTo find the Select Identifiers window

Letter fields
One letter of the alphabet represents each identifier. Mark the box next to each identifier you want to apply to the card.

Zoom arrow
Click the zoom arrow to open the Identifiers window. You can use this window to enter a name for the identifier if you haven't done so already.

OK button
Click this button to accept the entries you've made in this window.