How do I clear all previous text in a room before a new message appears?

ClearScreen

I use a function I made called 'ClearTurn'

ClearScreen
ShowRoomDescription

This will clear the screen and reprint an updated room description accounting for any changes that may have occurred from the last action made. I add a

<br>

to any message so it will have a space between it and the description. In the 'game description tab you have the option to put a new line after the description but it doesn't always put a new line. At least for me it doesn't. So I make sure to always use 'ClearTurn' ;)