The problem is solved.
The issue was that I run MagicDraw through MagicDraw.sh file from the /bin directory (due to Mac OS X Sierra’s updated gatekeeper policy).
I followed these steps:
1 Open a terminal.
2 Using the terminal, open the MagicDraw installation directory.
3 Write the command: xattr -d com.apple.quarantine MagicDraw.app/
4 Close the terminal and start MagicDraw using the .app file.
Then I was able to run the MagicDraw by double click at Applicaton —> MagicDraw —> MagicDraw.app. When MagicDraw window was opened this way, I checked the integration, and found that Matlab was integrated.
Thanks a lot.