Command autocompletion for Bedrock

Java already has this neat feature on commands where it would show suggested values and by clicking the suggestion or pressing tab it would type it in the command. I like to see a similar functionality for Bedrock, especially for touch. The idea is that while you're typing the suggestion would appear on top of the command line and pressing it would type it in the line. Bedrock has a similar function but it is not as useful for touch users.