listy-plugin for dummies: how to delete an item?

so sorry to ask such a simple question.

listy-plugin actually works great. I can add new items and edit existing ones. But.. how can I remove one? (I know it should be quite simple, but don't find a way)

My list is a SCRUM like following

%BEGINGRID{border="on"}%
%BEGINCOL{"3"}%
---++++ Todo

%LISTY{
   "todo" 
   collections="todo, inprogress, zu_testen, done"
   format="<span class='$class '>$title</span><div class='foswikiAlt '>$summary</div>"
}%
%BEGINCOL{"3"}%
---++++ In Bearbeitung

%LISTY{
   "inprogress" 
   collections="todo, inprogress, zu_testen, done"
   format="<span class='$class '>$title</span><div class='foswikiWarningMessage '>$summary</div>"
}%
%BEGINCOL{"3"}%
---++++ Zu Testen

%LISTY{
   "zu_testen"
   collections="todo, inprogress, zu_testen, done"
   format="<span class='$class '>$title</span><div class='foswikiTipMessage '>$summary</div>"
}%
%BEGINCOL{"3"}%
---++++ Abgeschlossen

%LISTY{
   "done"
   collections="todo, inprogress, zu_testen, done"
   format="<span class='$class '>$title</span><div class='foswikiSuccessMessage '>$summary</div>"
}%
%ENDGRID%

-- IgorGiunta - 15 Aug 2018

When you hover with your mouse over an entry there are a couple of buttons showing up one of which is a minus. Click it to delete this entry. See below screenshot:

It might also be the case that these buttons are missing given your format parameter. First try your scrum without any format parametes. Then try adding $buttons to the format.

-- MichaelDaum - 15 Aug 2018