What this extension does:
With this extension, you can add a fixed button to all pages of your website.

Features:

• Adding a fixed button to all pages;
  
• Color picker for extension;
  
• 3 button positions;
  
• 2 modal windows with sending message to admin email;
  
• Support phone and email links;
  
• More than 10 social networks are supported;
  
• Works great with all templates;
  
• Smooth animation;
  
• Svg icons;
  
• Minified and unminified css, js are included;
  
• No core files are changed or replaced.

Requirements:

• Bootstrap.

Demo:
Front:
https://oc4.secretsergey.com/
Admin:
https://oc4.secretsergey.com/admin/
Username: demo
Password: demo

How to install (4.x):

1. Login to your OpenCart Administration panel;
   
2. If you are not using the free version of the extension, then go to step 6;
   
3. Go to Extension > Extensions and select "Other" on dropdown list;
   
4. Find the extension in the list below and uninstall it;
   
5. Go to Extensions > Installer, uninstall and delete extension here;
   
6. Go to Extensions > Installer and upload zip file suited for your OpenCart version;
   
7. After successful installation, find the extension in the list below and install it;
   
8. Go to Extension > Extensions and select "Other" on dropdown list;
   
9. Find the extension in the list below and install it;
   
10. Configure the extension and save the settings.

Support:
Email - sergey@secretsergey.com
Telegram - t.me/secretsergey

I will be grateful for the evaluation and feedback on the extension page.
Thanks for your choice!