sys = ss([0, tf([3 0],[1 1 10]) ; tf([1 1],[1 5]), tf(2,[1 6])]);
x0 = [0.3,0.25,1,4];
ip = initialplot(sys,x0);
ip.OutputLabels.String=["Output A";"Output B"]; % change the labels
ip.OutputLabels.Color='r'; % highlight what we modified
title("Initial Condition Plot of MIMO System sys(s)")
grid on
See the <documentation for the initialplot object> for all the details....it appears the "To: " prefix is hardcoded and immutable. It also appears the axis format property is hidden so one can't fix the ugly disparity in precision of the upper axes.
ip.AxesStyle
