Graph start with last value


I started with the first graphana graphs. I use it to visualize the stats of my ventilation system. Its an amazing tool. Sometime the values change very rarley. So in the graph the is a big spare, where the line is interrupted.

You can see that the line starts with the first point and end with the last point. Is it possible to start the graph with the last value before (not shown in the graph) and continue the line after the last point with the high of the last point?

Thanks for your Help.

Anyone an idea? If I zoom in to have a look on a short period of time: Its shows: no value. Is it possible to show the last value in this situation?