Make Command Easier in MCBE

I have a problem with /playanimation,/playsound and /fog. It didnt show me the list of id or sub command. I always need to google something to use the command. I want the command easier for /playanimation (and others too) like /give command. It show the list like /give @s (listed thing) So I could use command easier for my own minigame and use it to suprise my friends :D