How to install plugins?

How to install a plugin from market?
I downloaded matomo and put it on my server. Everything is OK. Then I tried to download the custom dimension plugin from marketplace. I downloaded the package, but how to use it? Copy it to my piwik folder?
Thanks.

The easiest way is to install it via the marketplace inside you Matomo instance. Otherwise move it to your plugins folder and activate it via the interface.

Thank you very much Fabian!