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1. Add the highlighted code to the Click event for the Hello button (it appends the word 'Hello ' to the #STD_TEXT field):
EVTROUTINE HANDLING EVTROUTINE HANDLING(#HELLO.Click) #STD_TEXT:= #STD#STD_TEXT TEXT + 'Hello Hello ' ENDROUTINE
The AutoComplete prompter shows up as you start to type. You can use it to select a command and the command's parameter values. It also completes parameter values as you type them.
Note that there is a space between the word Hello and the closing quote.
Please review the points noted in Some Things to Note about Entering Code.