text formating

i have a question can you add to the text formating than for text chanel and user 

because when you do <@userid> that will be replace by a ping of the user 
and <#chanelid> it will be replace by a # of the chanel and tou can click on for moving to the chanel 
why you dont add it for voice chanel with the <!voicechanelid> ( ! is use on the search for voice chanel and * for server and the same for the server with <*serverid>