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Posted: **25.01.2021 14:48**

On --help, I see:
-n - Ignore option "ui_one_instance", open new app window

I want the opposite. I want one single window. How do I get that behavior?

Tried -id=name - Set single-instance id, for groups of instances (Unix, default: cudatext.0)
But it doesn't do much different?

Posted: **25.01.2021 15:00**

How to open files in a new tab instead of a new window
Option "ui_one_instance" controls it, so change it to 'true' (without quotes, in "user.json"). This option is here for several years already, but people are asking this question again and again (forum, GitHub, Linux forums). Seems the term "instance" is not known very good, people cannot find this option easily.

From here
(Another way to change the option is in the Options Editor - in menu "Plugins > Options Editor...")

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Single window mode

Single window mode