Hi.
I create a wrong Attribute for my citations. How can I remove it from the attribute list when I add an attribute to a citation ? (The list who appears when I click on the arrow in the attributes editor).

Hi.
I create a wrong Attribute for my citations. How can I remove it from the attribute list when I add an attribute to a citation ? (The list who appears when I click on the arrow in the attributes editor).

Welcome
There is the addon Type Cleanup tool. It searches the database for any custom type added by the user. It allows you to edit, remove, or to replace the type with another option.
@Patsyblefebre and @DaveSch
It works ! Thanks a lot.