Easy, you can install addon same as default addons. extract plugin file into /addons folder, then go to your admin panel ->manage addons and click over install button

Yes, it is empty bcouse only me install the custom codes, this is to protect my job from copiers, before buy make sure u are agree to give me ftp,cpanel, or any kind of access to your chat site so i can install my codes

yes, i give some discount when someone put  a lot of items in his cart.

I only install the custom codes 1 time in your server, so make sure dont fuck up your site with your modifications, if so, u will have to pay me again to re install my codes again.

An addon or plugin are some codes that u can add inside /addons folder, some addons need some custom edit,

but almost all my addons are just extract and install.

An edit is a custom code, we charge this as a custom job, custom codes means than need to be installed in the codychat core files.

The addons are encoded to protect my job from nullers

Unfortunally, this is not posible, i dont share my code anyone. so dont come here asking to give code, bcouse im not a teacher, u want unencoded addon? then code it yourself

You will need to reinstall the addons after codychat update,and they should work again.