Is it possible to programatically set boolean text on a control with mixed formating, e.g. 1 word in bold and one not. It is possible to do it manually.
No. You cannot write any formatted text programatically. But you can usually format the text on the font panel without any problem. To do it manually highlight your text and then pull down the font list box and you can change the size, color and style from this pull down.
Actually, with later versions of LV, you should be able use the Boolean Text properties for Font and such. To apply the properties to just a subset of text use the selection first and the property change will only affect the selected text.