Plugin not shown on WP menu

Hi,

I’ve installed the plugin, but it does not show anywhere on the left menu of WordPress.
Therefore, I cannot access to its configuration… I just managed to access the video gallery url thanks the video in the description tab.

Can anybody tell me what’s wrong with this? At least, show me the specific urls so that I can access the general options (I need to resize image thumbnails).

Thank you

https://wordpress.org/plugins/gallery-video/