Please give an option to limit the range of a displayed line.
Actual case: straight line fits of multiple datasets in one scatter plot, all fit curves displayed over full x-range makes visualization very confusing. If displayed straight line fit curves were limited by the underlying dataset range (i.e. not extrapolated), the graph would be more readable. (In MS Excel, the x-range of a trendline is by default limited by the underlying dataset and the user has a forecast option, either this option or vice versa (full x-range by default and limited if necessary) would be an improvement)