Do you have ever wanted your sprite to pass "behind" lower ones easiy (I mean, without messing with order layers or multi-part sprites) ?

Then go to your Project settings > Graphics > Transparency Sort Mode, set it to Custom, and set Y axis to 1 :

Then make sur your sprite renderer (on your gameobjects) have Sort Point set to Pivot and that their order in layer are the same :

Hope it will help you (now or later). Good luck !

ps : the source where I found this gem trick