I have created some plotting functions, which are similar to MATLAB's plot function, where the first argument could be an axis handle, or your first plotting input- then you can hand in the stuff you need to plot, then you can hand in things like "FaceColor" etc. The function works just fine; however, since it is part of a shared toolkit, I want the help on it to be useful.

With MATLAB's plot, if you type plot( then it shows you all of the options of inputs, aka plot(x,y) then plot(x,y,LineSpec) then plot(X1,Y1....Xn,Yn) and so on. But with mine, it just says plot_covariance(varargin). What I want to be able to do is show the different options in the help, but I can't find a way to do so.

Does MATLAB have a method? I know I should write a good comment block at the top, but I would like if I could show that pop-up tooltip.