If you want to move a table in Google Docs, or center or align a table, then follow the methods laid out in this article.

This is a helpful basic how-to that tells you how to select text, and cut, copy, and paste it in Google Docs.

Open your Google Docs document by launching Google Docs and clicking the name of the document you wish to open from the list that appears. Highlight the text or other data that you wish to cut.

Tables in Google Docs can be customized. This tutorial shows you how to Rotate and Color Google Docs Tables the easy way.

Learn how to display text set apart from your main document in Google Docs with either a table or an inserted drawing.

So that's why Google Docs will tell you to use keyboard commands instead to cut, copy or paste things in and out of a document.