Categorizing Gmail messages based on the time user spent reading the message
问题 I am looking for the following feature in Gmail. For each message I open, it tracks the time I spent reading the message when it is feasible to do so. For example, if I open message 1 and then move to message 2, by clicking a button within 2 seconds, it notes that the time spent on message 1 is less than 2 seconds. Gmail automatically labels the messages on which the User spends less than some configurable amount of time (say 2 seconds) and assigns them a label, say "LowAttentionSpan". This