For future reference

you mean like this?

Graphics 800,600,32,2
font = LoadFont("Comic Sans Ms",20,1,0,0)
font2 = LoadFont("Comic Sans Ms",20,0,0,0)

SetFont font2:Text 5,0,"This is "
SetFont font:Text 53,1,"bold. "
SetFont font2: Text 91,0,"This is not."

i am not sure exactly what you mean so i hope it helps.