How can open multi tabs ???

[Geoff Hayes]

Gyorfi - what exactly is your question? Multiple tabs are open in your screen shot.

Answer 1

[Steven Lord]

Taking a guess at what you want to do, I think you want to see multiple documents at once. If that's correct, you can do this by undocking one or more of the document windows and arranging them using the capability of Microsoft Windows to snap windows. Alternately you could tile some or all of your documents inside the MATLAB Editor directly. Instructions on how to dock and undock or tile documents in the Editor are on this documentation page in the Document Layout section.