Use this function to remove a Textarea of gfx mode from memory. The function demands the following parameters:
%CleanUp.TextArea(Index)
Thereby the parameter Index can be one of the following values:
0... - numeric index value with range from 0 - (TextAreaCount)-1
Last - last of all Textareas set by script is deleted
All  - all Textareas set by script are deleted
Example:
%CleanUp.TextArea(All)