Hi. I'd like to revive this request. It's been included in the official list of panel plugins for Xfce: https://gitlab.xfce.org/panel-plugins/xfce4-windowck-plugin
It already has the debian directory. I tried packaging it but it segfaults when it's set to display the buttons on desktop. I have set up three launchers as window buttons, which is good but not quite the same as having a dedicated plugin that works as intended. The plugin also displays a window title, which is a huge bonus. If the appmenu-plugin is included, I think this one should be as well. Comes in handy for laptop users (typical users of Xfce). Ideally, both should be merged and made into a single plugin but this has to be discussed somewhere more appropriate. Thanks.
