Power BI - Scatter Plot - Replacing Axis values

Hi,

I currently have a scatter plot shown below with a numerical X and Y axis.

However, the X axis is essentially a numerical version of a categorical variable and it would be great to be able to overlay the categorical variable on top of the x axis. I only want the x axis values to change, not the actual axis itself.

E.g. instead of 11-16 being shown on the x acis, it would show A, B, C, D, E, F and these would be mapped so A=11, B=12...

Does anyone know if this is currently possible. I made a new column where it mapped the integers to each category but struggled to actually use that without completely changing the x axis and rendering the graph useless.

Thanks!