[Plugin: Widget Logic] all I want to do it make this happen.. wont' work..simple ?

Hello !

All I want to do is make it so when you click a category that a widget now displays all the posts in the category but no other category.

And then when you click a post in that category I still want to be able to see all the posts in the widget.

I can’t seem to get it to work, any help here ?

Thank you !