Hello. This is me again. During the development of my plugin, I needed to include a vertical hierarchy list with tree-like structure(much like Windows explorer), so I implemented it(along with a vertical slider class to control it), using Label and CustomWidget classes. It works fine, but there are several minor problems that cannot be avoided with this kind of implementation. Labels that form the list are arranget diferently in diferent versions of Illustrator and list updating during sliding it up and down causes flickering of the list and slider. I was wanderng if it is possible to introduce hierarchy lists(much like in old ADM API) or at least native CORE vertical slider to use in my plugin. I could send you code of my implementation if it would be of any help. Thanks for attention.