Y-axis string values

I created an XY graph with Y-axis values representing 9  different channels. See attached screesshot.

For example:
1 represents Channel27

2 represents Channel45

etc..

What I would like to do is to have the name of the channels written directly on the Y-axis instead of numbers.

Something similar to what has done here for 3D stem plots: http://forums.ni.com/t5/LabVIEW/3D-Stem-Graph-String-based-Axes/m-p/2589885/highlight/true#M779040

Problem is that I can't find a property similar to Value Pair Array in 2D graphs.

Does anyone have a suggestion?

Thank you!

MG