Change X axis domain

[giuserive]

Hi, I'm here again!

I wanted to ask for some info: in case a plot is displayed, whether it's a heatmap or a line plot, is it possible to extend the viewing range on the x-axis?

For example, if I have a plot with x-axis values ranging from 10 to 30, can I display it in a range from 0 to 50 and, of course, leave 'empty' space before and after? Referring to the discussion I opened here, I would like to show the same plot but in a wider range. Is that possible?

Something like this:

Thank you,
Giuseppe