Update to my below question. Thank you for your comments. My scenario is I have a library on my site collection that I need to edit the user access to. I want a particular group to be able to upload to the library and edit the documents they upload but only those. Same request as in the below link but I am on O365 and this capability is OOTB for lists just not for Libraries. Thanks
My questions relates to a prior post. I am trying to create the same edit/delete restriction as in the link below. My question is where do I place the code? Do I use the Script editor web part? I just need to know where to enter this so I can use it. Your assistance is appreciated.