Hello, i'am looking for a way to get the names(s) of the innermost active state(s) of a MSM with composite states, e.g. for debugging purposes. In my application i use state machines with orthogonal regions and submachines. Currently i use code based on the example given for fill_state_names, see http://www.boost.org/doc/libs/1_47_0/libs/msm/doc/HTML/re02.html#d0e5385 It works well for for orthogonal regions. For for submachines only the name of the active submachine is returned. Instead i want the name of the innermost active state in each submachine. I already found 'recursive_get_transition_table', this seems to be a first step. But i don't know how to get the state id's on the path to innermost active state. Unfortunately i don't know much about boost::mpl, thus i'am a bit lost at the moment. Any suggestions on how to get the state id's on the path to the innermost active state? Or on a different approach to get the name of the innermost active state? Best regards, Jan