How to find the value of "Border" in findpeaks built-in function?

Example using this link

findpeaks function example link

x = linspace(0,1,1000);

Pos = [1 2 3 5 7 8]/10;
Hgt = [4 4 2 2 2 3];
Wdt = [3 8 4 3 4 6]/100;

for n = 1:length(Pos)
    Gauss(n,:) =  Hgt(n)*exp(-((x - Pos(n))/Wdt(n)).^2);
end

PeakSig = sum(Gauss);

% Plot the graph

plot(x,Gauss,'--',x,PeakSig)
grid

findpeaks(PeakSig,x,'Annotate','extents','WidthReference','halfheight')
title('Signal Peak Widths')

How can we find the X and Y value of the border?

Border is built in function in "findpeaks"

[Star Strider]

See this Comment.

[Matlaber]

Thanks!