how to change the amount of entries in 'low stock 2.01'

[scotch33]

I am trying to find out if there is a way to change the standard 20 rows in 'low stock 2.01' as the customer wants to be able to see all stock items - the main reason for this is so they can do a complete stock take by setting the low stock level to far higher than any stock and thus produce a full stock list for printing' thus, having it on a single page will be essential.

 

Thanks!