nframes_t _current_start; ///< start position for the selection
nframes_t _current_end; ///< end position for the selection
std::list<RegionView *> _bylayer; ///< list of regions sorted by layer
nframes_t _current_start; ///< start position for the selection
nframes_t _current_end; ///< end position for the selection
std::list<RegionView *> _bylayer; ///< list of regions sorted by layer