Narrowing the object. Can't solve a problem?

Question

3D

Made a simple object. Applied the "Taper" modifier to it. The problem is that this modifier only narrows either the center or the bottom. I would like it to narrow exactly the upper side of the object. How to be?
ps Once I managed to do it, but I don’t remember how.

Answer 1

At the top right of the modifier panel near Taper there is a plus sign. Having expanded it (in the screenshot it is already expanded for you), you will see two objects, one of them is center. Select it and move it as an object around the scene, the center of the modifier will depend on its position.