ANDing multiple values in a field

[ln_e]

Hi,

First of all, fantastic plugin, it's come in very useful. Now; I have a thread prefix/category setup where I have a relatively large number of possible values for one field (users may freely select any combination thereof). I'd like for it to be filtered such that selecting multiple values requires all of them to be present for threads to show up, like a logcial AND:

Quote:Topic 1
FIELD: A C D F

Topic 2
FIELD: A D F

Topic 3
FIELD: A C D

Selected filter: A C

==>

"Topic 1" and "Topic 3" are shown.

Currently, (and as per documentation) stacking filters works as an OR, meaning that it's not possible to filter for specific combinations within a single field (selecting A C D F would return all three Topics, which is not particularly helpful).

I was wondering whether there's a way to set it up so multiple filters for a multiple value field will be treated as filters across different keys/fields would be, or if not, whether there's a relatively unconvoluted way for me to hack it in on my copy of the plugin (I don't need OR filtering).

Anyone got any ideas?