Yes, that's possible. You can use the Static Min and Static Max settings of the dimension axis. Or you can use a calculated dimension that uses an expression to return only the last 12 months. Or you can change the chart expressions so they only calculate results over the last 12 months. Have a look at the results returned by this search:
Looking at the returned list you suggested I notice they all reference showing a fixed number of columns on the x-axis to show just the last 12 months. I want to show the last 12 months but still have the scroll bar option to scroll backwards in time. I think the static values limit the number of columns on the chart rather than set the start columns with a scrollable chart.