[otrs] How to open previously closed ticket ??

Hi. Probably it's a very simple question but I can't find it anywhere. How to open previously closed ticket ?? -- Pozdrawiam Jarosław Czarniak Jarsat s.c. Kruczkowskiego 13F 80-288, Gdańsk jczarniak (at) jarsat (dot) pl tel. 0 58 741 77 02