How to "lock" the weights so viewers cannot change or unweight the data
As an editor of a dataset, you can control whether Viewers of that dataset are able to change the weight. Changing the weight could mean: turning a weight on or off, or changing from one weight variable to another.
To control this behavior, click on the Dataset name, then Properties, then the Permissions tab. On the right side of the screen are the controls. Please see here for further discussion and screenshots. Managing Permissions