Hi @wayne.wu
Currently, we do not have this feature in place but we do have a GitHub request on the same lines: Add application-wide auto-save feature
As explained in the same thread:
It is a bit trickier in collaborative environments where some users might want this feature turned on, while others in the team are okay specifying when to save (in this case save individually). Could lead to a lot of conflicts.
Do add any additional comments on the thread that might help our engineering team to consider the same. In any case, you are free to submit a new feature request for this - thank you in advance for the inputs : )