Qualify a data in field in data load editor

[_jonah]

Hi -

I first unqualify three sets of database. Now, I have to qualify/exclude one database but only for two data in MONTH field. Would you know how to do this in the data load editor? I've been looking for an exact scenario here but didn't see any. 

Unqualify *;

Qualify "Month";

would it be possible..

Unqualify *;

Qualify "Month" = 'October','December';

Appreciate any help you could extend. Thank you.