Hud Options -> Table preferences -> click for popup
You need to click on a empty space between the stats to get the main popup.
If you still want to be able to click for the main popup but not see the small hover-over popups, you can try this:
HUD Options > Tables Preferences > Click For Popup should be Off > Popup Time (ms) >
Default value is 750ms or 3/4 of a second. Try setting this to a high number such as 5000, or 10000.
finally , thx fozzy :
You could set one of the stats to the sample popup and click on the stat.