Board Thread:Questions and Answers/@comment-31393399-20170407163401/@comment-28905095-20170712170347

Currently there is no spawn chunks in MCPE (or bedrock engine).

However, as ApplexForLife vaguely refers to, there will be a `/tickingarea` command, which enables the player to mark various areas to be kept loaded and to receive game ticks (which is the game mechanism related to triggering block updates, farm updating, redstone mechanims, command block updates and so on)