mdo sets up a command to be executed upon entry into the specified frame of the movie. These commands are usually created by a PyMOL utility program (such as util.mrock). Command can actually contain several commands separated by semicolons ';'
mdo frame : command
cmd.mdo( int frame, string command )
// Creates a single frame movie involving a rotation about X and Y load test.pdb mset 1 mdo 1: turn x,5; turn y,5; mplay
The mset command must first be used to define the movie before "mdo" statements will have any effect. Redefinition of the movie clears any existing mdo statements.