Hi hector! You can change all tokens in play, and make that the default for any new tokens, but you can change the module's saved default tokens. SO for instance you could change every werewolf on a map to your new specs, and if you decided to drag in a weretiger from the compendium, it would also have your new specs, but if you were to drag an existing werewolf from the journal tab onto the VTT, it would have the saved values. This is done by changing the assignment on the campaign settings page and then using the "Apply Campaign Defaults" tool from inside the button. Not that there is a thin, easy-to-miss progress bar that can take some time to complete. You'll need to wait until it is finished. There are other options you could do if you had a Pro subscription and could use scripts. As for why the assignment is the way it is. Roll20 used to have one bubble on a token. Eventually two others were added, but by that time, everyone was using what used to be the only bubble for HP. Rather than require everyone to change their games, there was a request for user feedback, and the "bar one" circle was kept in the middle, and continues to be used for HP.