This is a very delayed reply, but I thought I should put it here in case anyone else has a similar question and comes across this thread. In JMP 11, the textbox() command can accept 3 HTML markups - bold, italic, underlined. From the scripting index: win = New Window( "Example", text = Text Box( "Example Text" ) ); text << setText(     "This is <b>bold</b> text. This is <i>italic</i> text. This is <u>underlined</u> text. This is <b><i><u>bold, italic, underlined</u></i></b> text." ); text << markup; Here's a one-line text box script: TB_MyTextBox = text box("My example <b>bold</b> text can also be <i>italicized</i> and <u>underlined</u>, as in <b><i><u>this example</u></i></b>.", <<Markup), When combining, remember that order of the HTML markups matters. <m1><m2>text</m1></m2> will not work - the markups must be 'closed' in the opposite order they are opened, so </m2></m1>. ... View more