Setting Crosshair in Multiple Graph!

I tried to set Crosshair in multiple graph
Used the line as:
Graph1.setCrosshair(true);
for all other graphs also, but it returned an error saying ‘It is not a function’…

Then i checked all the functions of multiple graph in the docs, there is no setCrosshair function in it and i wonder why…Can’t we use setCrosshair function in multiple graphs rather than a single graph?!:thinking:

I don’t think you can use setCrosshair function in multiple graphs. You need to define the function just in case you want to use it. You can find similar answer over here.
https://stackoverflow.com/questions/43144563/get-crosshair-values-across-multiple-flot-charts