When working with a query, you may only want to show specific items which are of use to your analytics.
This is simply achieved by selecting the 'Filter' tool on the top right-hand side.
Filter settings will appear and from there, you can select the column, condition and value you wish to apply to your data.
Once you have applied the filter, the query will appear with the edited columns. Now you can save the changes in the bottom right-hand corner.