Hello again @MEDOW, I have found a workaround to display mean values in a one-way ANOVA graph.
After selecting your y and your x from Fit Y by X, red triangle (RT) and select one analysis that gives you means (e.g. "Means and Std Deviations" or "Means/Anova").
Now, right click on one of the mean values in the report and select "Show Properties" to open up the Properties panel on the right. (see screenshot 1).
Now adjust as you like your mean values in "items" (e.g. I only wanted 2 decimal values). Now, select and drag and drop the value in property tab (mean for you) onto the desired position in the graph. (see screenshot 2).
I have also checked and the values are displayed in the graph also if you export it as image or PowerPoint file.
Let me know if this is solving the problem!
Best,
Manlio
Manlio