merges all sequences of a collection of sequences into one long sequence depending on the timestamps of the contained events. If one of the events does not have a timestamp, the command quits with an error leaving the collection of sequences untouched. $USAGE$ the name of the collection of sequences that shall be merged into one sequence optional; the name of the collection of sequences into which the resulting sequence shall be stored; if left out, the result is stored in the collection identified by Example(s): mergeSequences someSequences mergeSequences someSequences someNewSequences