[Code_Red]

Make two strings and two textdraws. Assign each string to a respective textdraw. When something you want to be displayed on the first one happens, set the string to whatever it would be. When something else of the type occurs, change it so that the second string will contain the older message. Needless to say that you will have to update the textdraws after every time something like is happening, so I would simply create a stock to do all this.
I did not script in a very long time, so there may better ways to do this, though I am sure this would work.
Good luck.