Hi I have ,---- | #+PROPERTY: header-args :eval no-export | ... `---- and other header arguments set at the beginning of my document. But now I have one subtree, which I want to eval on export. Is there a way of un-setting the :eval header argument for one subtree or is there a special (default) value I could sewt it to? Thanks, Rainer -- Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation Biology, UCT), Dipl. Phys. (Germany) Centre of Excellence for Invasion Biology Stellenbosch University South Africa Tel : +33 - (0)9 53 10 27 44 Cell: +33 - (0)6 85 62 59 98 Fax : +33 - (0)9 58 10 27 44 Fax (D): +49 - (0)3 21 21 25 22 44 email: Rainer@krugs.de Skype: RMkrug PGP: 0x0F52F982