That depends on how you would define multis.
Multinational Corps?
OCP? INGEN?
Edit
So now it says it is a text editor. Glad this is clarified, all we needed was a multi text editor, without any show case or screen shot or website or any other reference of the usability or usefullness of said editor.
Exciting.
well it is exactly that, a replacement for Notepad (with tabs) ! you are mixing up with Multiviewer, which is a multiview replacement (with tabs)...