The name of your current view is displayed at the top of the screen:
It may well be that, having filtered and sliced your data, and opted to keep the reduced dataset, you wish to save the filter selections for future use. In this event, click View at the top of the screen, to bring up the following dialog:
Enter the name of your view, and if you wish to be the default going forward, tick Make it my default, Then click Save.
The saved view becomes your current view (being displayed in place of Original at the top of the screen). It appears under My Views in the above dialog.
To remove a view, click Manage at the bottom of the above screenshot, select the view and click the Trash button:
You are asked to confirm the deletion.