[Koha] Inventory - Missing books search by date

[Beda Szukics]

Hi

I have used the inventory tool of Koha 3.0 to check the items in the 
library I manage.

Now I would like to have a list of all the missing items. For that I 
would like to search for items with le date-last-seen prior to 
2008-06-01 (the date I started).

How can I do that? In the search dialog I couldnt find a possibility to 
do so.

Beda