Give commands (bedrock xbox) scroll selection to pick the command and such

For example we want the fill command, you have a long list of commands but don’t feel like typing all of it out, type in the command symbol / then the first letter of the command you want (in this case F) upon doing this you can then either continue to type it out or exit the keyboard screen and scroll with the up and down + keys on the controller to auto complete the the beginning of the command. Then for filling in the rest of the command (the more customisable aspects such as the size of the space to fill, the material etc) you get the ability to scroll again through a list of numbers and block types, for different commands, a list of entity targets or block states, etc. I believe this would be less painstaking than typing it out on controllers. Furthermore adding to the quick commands menu, favouriting commands are ideas that would complement the main idea too.