MTEXTTOOLBAR system variable
Function Description:
The MTEXTTOOLBAR system variable is used to control the display of text formatting toolbar.
Type : Integer 
Saved in : Users-setting 
Initial value : 1 
Range : 0,1,2
System Variable Value:
0 : never display the text formatting toolbar
1 : display the text formatting toolbar after selecting MTEXT objects 
2 : display the text formatting toolbar when the ribbon is on (not support)