You can change dashboard label/title, by open the dashboard click edit, then click the pencil icon next to the title to change it.
Or, by open the dashboard in JSON mode, then change the "label", by default, it would be at the 2nd row, but to get the dashboard API name, follow this blog Dashboard API Name.
Remember you need to save the dashboard for both above options. Another method to change dashboard label is, when you click Save icon to save dashboard, the system will pop up a window and you can change dashboard title from here (this will rename dashboard, not save as a new dashboard).
To change lens label, open the Lens in JSON mode, you will find them at the top, by default, it would be at 3rd row from the top with "label", remember to save the lens. When you edit Lens in JSON, you will see Lens name too, but unfortunately, you can't save it.
Same as the dashboard, you can rename lens title when click Save icon, change lens title will rename the lens, not save as a new lens.
Similar to the dashboard, to rename Dataset label, edit the dataset, then click the pencil icon next to the title to change it. When you edit the dataset, you also can move the dataset to the new app.
To rename an app, simply open the app, then click the pencil icon next to the title to change it.
As of Winter '19 release, we cannot rename dataflows. When edit a dataflow, it will not give us the option to change dataflow name/title. You can vote this idea in IdeaExchange.
However, if you really need to change the dataflow label, here is the workaround:
- Download Dataflow JSON to your local computer
- Create new Dataflow
- Click "Upload JSON" button and upload downloaded JSON file
- Click "Update Dataflow" button to save
- Once the new dataflow is verified, delete the old dataflow.