The Datatables Editor plugin is a premium product and it can not be included in our templates. However, you can integrate it on your end and use it.
For more info about using Metronic please check the https://preview.keenthemes.com/metronic8/demo1/documentation/getting-started.html and video tutorials https://preview.keenthemes.com/metronic8/demo1/documentation/getting-started/video-tutorials.html