install question + elementor pro gallery widget compatibility

Hello,

I have 2 questions:

1) I need to protect my images of my portfolio website and to prevent visitors from dowloading them. I was told about your plug-in. I am ready to buy the paying version, more complete. But I need to be sure that it will fit my needs. I’m on WordPress but I use Eelementor pro to build my website. I use the widget Gallery pro. This widget, by default, has a share arrow on 3 social networks AND a “download image” menu: I show them to you on this gyazo: https://gyazo.com/754e016034814af6b1016e209233657a
So is your plugin compatible with this widget gallery pro from elementor pro?

2)I have tried to install the free version already (and once again I’m up to buy the full version of this plug-in if it is compatible with gallery widget pro from Elementor pro) but I need more detailed informations about how to install it properly.
I’ve tried to follow your steps but I’m stopped and blocked at the second step:

Your instructions are:
“-Download the package.
-Extract the contents of WP-Content-Copy-Protection.zip to wp-content/plugins/ folder You should get a folder called WP-Content-Copy-Protection” >>>>>>>>how do I find wp-content/plugins/ folder?

Thank you in advance for answering me to both questions. This plug-in is the last thing I need before putting my website online now.