To answer your original question, see https://www.dmxzone.com/go/21842/enable-server-behaviors-and-data-bindings-panel-support-for-dreamweaver-cc/ to download and install an extension.
Please take not of what is stated, namely
| We would like to remind you that Server Behaviors have been deprecated for quite some time and for a very good reason. They use an outdated connection method that's been deprecated in the current release of PHP and very soon will be removed completely, which means that your websites will no longer work. |
Precisely what this means is that the extension (Server Behaviours Panel) will not work with the latest version of PHP. This is presumably the same version that you're using. That is why I asked if you wanted to code for the past, i.e. PHP 5.
To advance from here, you either need to code by hand or you need to install a different extension such as
To learn about coding by hand see PHP CRUD Tutorial (part 1)