Can't get 'roots wrapper override' to install

Hello,

Firstly, I am only using the sage theme - not roots. The site I am working on is a legacy site that I can’t fully restructure so am just using the sage theme. Can I use the Roots Wrapper Override plugin if I do not use Roots and Bedrock? If I can, then maybe I have my structure incorrect. I have put the downloaded plugin files (renamed parent directory roots-wrapper-override) inside a plugins directory in the sage theme. So my structure is:

wp-content/themes/sage/plugins/roots-wrapper-override

I can’t see where to activate the plugin. It is not listed in the plugins list and there is not ‘plugins’ page under ‘themes’ in the dashboard. Am I doing something really simple incorrectly?

Thanks

plugins go into the main WordPress plugin folder, not within the theme.
The right place for the plugin is wp-content/plugins/roots-wrapper-override.