checkbox OR or AND

Hi,

Similar to example “checkboxes and headings” in the document, if I select both “category 1″ and category 2”, it seems to be AND.

For example, I have 10 posts in category 1, and 5 in category 2. Then nothing will be found if I don’t have any post with both categories.

This will be mainly for checkbox because radio and dropdown will have one selected only.

Is it possible to add an option, say “inner_logic” to be AND/OR, and the shortcode can be:

[searchandfilter fields=”search,category,post_tag” types=”,checkbox,checkbox” headings=”,Categories,Tags” inner_logic=”,OR,”], so that the search becomes keywords AND (category 1 OR category 2) AND post_tag, something like that?

Thanks!!!

http://wordpress.org/plugins/search-filter/