Ability to gather all or a certain type of item from chests on PS4

Before i start explaining, i have seen many YouTubers do this on other versions, but i have no idea how to do it and only have a PS4 version. Please correct me if my idea is currently or will be added in the 1.14 update :) Thank-you.

So i play on the PlayStation version and i see some players on java etc editions taking all items for PVP/ Hunger Games on Minecraft and a certain type of item (might be diamonds) in Showcase videos from chests. I have tried to do the same on my edition by following all the guides i can find on YouTube and on websites, but to no avail. I would love to do this on the PS4 or any edition to make getting specific items out easier, or getting all items out in a hurry.