What can I use this new advanced settings option for?
You are very quick This option is the new one - so not documented yet. Sorry, we will fix that soon.
Before save is running on the client. Same as others (Model change …) People use it usually for setting the valid property in case it depends on more than one field.
doo.model.isValid = ...
After save is a new option. In the near future, it can be running on the client or the server side. We want to use it for some kind of webhooks - when you need to call some other API after the record is saved. (we are preparing the get/post wrapper for that)
We will explain more in docs when ready.
Great! Looking forward to it.