When Kate is already open, and in Firefox I press
Ctrl-U to open the web page in the assigned external text editor (Kate), the web content opens in a second Kate session.
I want to use the current session only. I'm an MDI
kind of person. :)
Maybe using kwrite instead of kate would work in your case? The actual KParts are the same, it's just that kwrite lacks some things like multiple sessions.
kwrite is strictly SDI. If I wanted to open several web pages I would end up with several instances of kwrite open. Yes, there is task bar grouping but that only reduces clutter in the task bar. The idea of using kate is opening everything in one window. kate has a nice document listing to the left side and I can traverse through any of the open documents.
kate works most of the time that way, but not all of the time.
Darrell