I usually have several konsole windows on several desktops.
Running konsole --new-tab is intended to open a new tab in an existing window, but it seems never goes to the window I want. This is really boring.
In fact it seems to go to the first konsole instance launched while I would expect it to go to the last one launched (the way gnome-terminal --tab is supposed to work, but it doesn't seem to work on mt system, CentOS 6).
--session doesn't help.