Set your own, fixed citation keys By default, BBT generates the citation key from the item information, and this key may change when you edit the item. Such keys are called dynamic keys. In contrast, fixed keys are marked with a pushpin in the item list view and in the item details to distinguish them from dynamic keys. You can fix the citation key (called pinning in BBT) for an item by adding the text Citation Key: <your citekey> anywhere in the extra field of the item on a line of its own. You can generate a pinned citation key by selecting one or more items, right-clicking, and selecting Generate BibTeX key, which will add the current citation key to the extra field, thereby pinning it.