"SelectionDisplayAs" is a front end token that redisplays selected cells in a new format type.
This token is equivalent to the menu command Cell Display As.
This differs from the front end token SelectionConvert in that the data is never sent to the kernel to be converted; it is reinterpreted locally in the new format.
This token has a parameter that can take one of the following values:
To execute a front end token, you typically evaluate a command of the form FrontEndExecute[FrontEndToken[token]].