Forget the wizard. I think you have to get your hands dirty with code. Script below prints all triggers code and stores it into table. Just copy the script's print output or get it from #triggerFullText.
USE YourDatabaseName
GO
SET NOCOUNT ON;
CREATE TABLE #triggerFullText ([TriggerName] VARCHAR(500), [Text] VARCHAR(MAX))
CREATE TABLE #triggerLines ([Text] VARCHAR(MAX))
DECLARE @triggerName VARCHAR(500)
DECLARE @fullText VARCHAR(MAX)
SELECT @triggerName = MIN(name)
FROM sys.triggers
WHILE @triggerName IS NOT NULL
BEGIN
INSERT INTO #triggerLines
EXEC sp_helptext @triggerName
--sp_helptext gives us one row per trigger line
--here we join lines into one variable
SELECT @fullText = ISNULL(@fullText, '') + CHAR(10) + [TEXT]
FROM #triggerLines
--adding "GO" for ease of copy paste execution
SET @fullText = @fullText + CHAR(10) + 'GO' + CHAR(10)
PRINT @fullText
--accumulating result for future manipulations
INSERT INTO #triggerFullText([TriggerName], [Text])
VALUES(@triggerName, @fullText)
--iterating over next trigger
SELECT @triggerName = MIN(name)
FROM sys.triggers
WHERE name > @triggerName
SET @fullText = NULL
TRUNCATE TABLE #triggerLines
END
DROP TABLE #triggerFullText
DROP TABLE #triggerLines