I have looked at the stuff inside an SCT file I downloaded and it has this in it:

Caption = "Clear"
Name = "Command2"
PROCEDURE Click
thisform.text1.value=""
thisform.text2.value=""
thisform.text3.value=""
thisform.text4.value=""
thisform.text5.value=""
thisform.text6.value=""
ENDPROC

But trying that with my stuff in it only causes if/endif errors when trying to close the form...