Hey Hans, I assume you are referring to the folder name in the list of objects on the left side of the Analytical Designer, correct?
The thing is, there the “folders” are technically not datasets, but really an object called “folder”. What is a bit confusing is that the data modeller automatically creates one folder for each dataset you create so it looks like this naming is based on dataset name. But as you tried already, renaming your dataset will not change the folder name.
To change the folder name you:
• go to the Manage section
• click Attributes
• in the left panel see the “Folders” section and click on the folder you want to rename
• then on the top right click “Folder Settings”
• rename the folder in the popup and confirm
Note that technically attributes and metrics/facts are in two different types of folders. What it means for you is that if you have any facts in your dataset (or if you placed any metrics in the same folder) you will also need to rename the fact/metric folder. You do it the same way as described above, just at the beginning click on “facts” or “metrics” in the left menu and repeat the same steps.