llSetTouchText(string text)
Replaces “Touch” in the object’s pie menu with text.
Passing an empty string to llSetTouchText will result in it defaulting to “Touch”.
The text is limited to 9 characters; tab is interpreted as 4 always. The newline character has no effect on how the text is displayed but still counts as a character against the limit.
Compare with llSetSitText.