Hi When I set the B_column environment, the property :BEAMER_env: is as expected, automatically set to =column=, but exporting to beamer results in an error as the environment is is not actually used in the resulting latex file. The environment is only correctly created, if the property :BEAMER_COL: is added. This is counter-intuitive and not obvious. Would it be possible to add :BEAMER_COL: automatically as well? 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