It won’t automatically switch HUD data. You need to just click on the DH2 logo and then select the new HUD you want. The best way to do what you want is to duplicate the HUD you’re using to the different table sizes by clicking the duplicate button, and then click the config option (gear looking icon middle right of screen) to filter for data between only X number of players at the table. And then select the option that says – apply to this specific table. This way each HUD won’t change if you’re multi-tabling.