How do I remove or hide values in charts?

1) Add values in the ranges section of the Charts area. Ideally, the range that needs to have values hidden does not intersect with any other lines. In this example, Range 1 is going to have the last few data points covered up.

2) Add a rectangle shape off to the side of the chart. Change the color to match the scene's background. If the background is not a solid color, take a screenshot of the background where the line will appear and upload it as a custom asset.

3) Place the image over the values to cover them up.

Optional step - apply the Slide Up Enter Effect and adjust the timing using the timeline:

If Slide Up Enter Effect is added, it will appear in the video like this: