Am 13.10.2010 04:47, schrieb Waluyo Adi Siswanto:
But in some environments (chapter, section, subsection), they are always in SansSerif?
Yes, but in the font you selected. You can select the font for sans serif in the LyX document settings. The default font is ComputerModern as described in the LyX UserGuide.
regards Uwe
