To fetch sequences from local BLAST database use the Fetch sequences from local BLAST database->Fetch sequences by 'id' from 'blast result' context menu item of the blast result. The following dialog will appear:

  <img src="/wiki/download/attachments/7667903/Fetching Sequences from Local BLAST Database.png"/>

Here you need select a query ID, database, type of file(s) and output path. After that click on the Fetch button.