Minecraft Bedrock Edition: World Backups

Hello Minecraft Team, can you please make a backup in the settings of Minecraft: Bedrock Edition where I can save worlds? I can type in the seed and the name of the world. It is really helpful, for example when I want to transfer a world from one smartphone to another smartphone with the same account. The worlds should also be transfered from a console to a phone, from a console to a PC and from a smartphone to a PC. I will be glad when you bring this backup in a next update of Minecraft: Bedrock Edition