[Request] Automatic cure update for health bars?

I cannot tell you how many times I have been in a campaign where I tell someone, or even type that I am healing them and for whatever reason they just didn't hear me or didn't pay attention. I end up the broken record, repeating myself upwards of 10 times before they realize they have been healed. I was wondering how to go about making or if someone has made an api script that corresponds with the varying vigor, cure, and heal spells out there to automatically update the targets HP bar? Example: I cast cure light wounds on the party barbarian who is at 15 health. I heal for 11 but instead of them having to adjust their bar, numbers or token, it simply adds the 11+15 current hp and their new total is displayed without them having to touch a thing. I looked through the API list and found a heal set up, and while it's close, it isn't exactly what I was looking for and I don't have a clue as to how extensive this request would be or where to begin myself for such an undertaking. I also searched around on the forums but didn't find exactly what I was looking for either so I think this request is unique.

<a href="https://app.roll20.net/forum/post/1216260/script-alter-bar-on-token" rel="nofollow">https://app.roll20.net/forum/post/1216260/script-alter-bar-on-token</a>

Oh, duh! "Alter" one of the few words I didn't search for when browsing the forums. Thank you so much for this.

The Alter bar script is a real time saver, dramatically cuts the "Wait a minute" time down and avoids screen clutter for the GM. Each time you use it it reports the change in the chat. I would use a manual update if you don't want them to know, like troll regeneration and such. Hats off to H.B. for this script.

The alter script has the option to not announce any changes. I should prolly add a way for the GM to do that on the fly instead of changing a variable in the script itself.

al e. ~ I just posted an update to the alter script that allows the GM to hide the chat announcement and have it sent to them as a whisper instead.