Control the Horizontal Axis Range of a Chart?

I see that there’s a way to set the vertical axis range of a chart, but is there a way to do the same for the horizontal?

I’m using dates as my X axis, and want to have the chart show to the end of my project, but obviously don’t have a data entry that far out yet.

I’ve solved it temporarily by adding a null value into my data set, but that actually causes a large number of problems with my formulas, etc