Invert AND OR relation

Hi

i am usig and love the plugin, but wanted to ask if it is possible to change the defauld relation type between taxonomy fields, it says default relation is or, but can’t be changed.

the problem is than when i set the relation of search terms to OR it shows a lot results, if i set to AND it shows nothing when both terms are on the same taxonomy.

example. category: laptop, desktop
tags: core i5, core i7.

when i set to AND the logic is, ‘laptop’ AND ‘desktop’ OR ‘core i5’ AND ‘core i7’, wich would turn nothing as there is nothing with ‘core i5’ and ‘core i7’ together.
if i set to OR it would be, laptop OR desktop OR core I5 Or core i7, which practically means everything, and is almost useless.
What i want is it to be ‘laptop’ OR ‘desktop’ AND ‘core i5’ OR ‘core i7’ which is the common thing to search.

So practically asking to set the relation between fields selected to search (example, categories and tags) be AND and relation between terms be OR. is that possible. which is the narmal thing to be and not the inverse it is now on all searches.

The page I need help with: [log in to see the link]