In general the Table Dashboard is for listing your current Pricing Tables. You are able to make the following actions here:
Below the list you are also able to navigate to the Import/Export section. Let's see that in details.
Wit the powerful filter bar you are able to search for your tables by name, id or theme. You can also order the tables with the 2 selectbox on the right.
Here you will see the existing pricing tables. When you hover over a table the available options will appear on the right. There are possibility for Edit, Preview, Duplicate and Delete the table. If you make a double-click on the table, the edit view will load. You can learn more about that under the Create a table article.
You can also select more items by CTRL+Click method. In this case you will able to Clone the tables, Export them or Delete if you don't need them anymore.
You can add a new Pricing table by click on the last object of the list, or even if you press the ++ Create New button below. You can learn more about that under the Create a table article.
At the bottom you can also navigate to the Import & Export view.