DropDown Post List (could you help?)

hi.

i added this plugin drop down post list

its working. i wanna ask a question about this plugin.

i want to add this code for all categories.
For example, there are 2 categories that named “A” and “B”. when you login the A category, i want dropdown plugin to show the post of “A” category. when you click the category “B”, i want to dropdown to show the post of category “B”

is that possible? Could you help me? I’ll be happy if you help me. thanx