Any of the metrics being displayed can be added to the the current view being displayed in the Table from the Metric Browser directly. To do this check the box under the Add column for the selected metric. The highlighted metric will display the info in the right hand panel and also displays which view it will be added to as highlighted in the screenshot below. To complete the Add, click the Add button in the bottom right hand corner.
If trying to determine if the metrics are already in a view, the number in the Usages column has a tool tip as seen below. This information is also displayed in the right hand panel as well.