how to open scripts in tabs not windows?

in matlab 2018, when i open a new script it opens a new window not a tab. I read in previous answers that i should click on the arrow on the right and click dock. but when i click the arrow there is no dock!!! please someone help.

Answer 1

[madhan ravi]

https://www.mathworks.com/matlabcentral/answers/144273-new-script-keeps-opening-in-new-window-instead-of-a-tab#answer_147045