Moodle in English: How to add Tab Display resource in moodle 3.9.1?

Hi,
How are you all?

Can you please help me understand how can I add Tab Display resource to my moodle?
Is it a plugin I should add?

I see

and this Doc - but I find no way to add such an option to my moodle.
Thanks!
Ram

Moyenne des évaluations -

par C Behan, %A 07/27/2020D %B %Y, %H:%M

Moyenne des évaluations Useful (1)

par Ram Freedman, %A 07/27/2020D %B %Y, %H:%M

Superb. Thanks!

Moyenne des évaluations -

par Visvanath Ratnaweera, %A 07/27/2020D %B %Y, %H:%M

Do you know whether that plug-in works in the current Moodle releases, 3.8/3.9? The documentation looks ancient to me.

Moyenne des évaluations -

par Ram Freedman, %A 09/24/2020D %B %Y, %H:%M

Hi,
Yes - I'm using it with the latest update just fine.

Moyenne des évaluations -

General help