The next minor version of Simile will be released soon, but looking beyond   that, we are working on adding discrete-event handling capabilities to the   software. These capabilities will integrate seamlessly with Simile's current   functionality, enabling event-driven processes to be incorporated in all   types of submodel, and also allowing instances of variable-membership   submodels to be created or destroyed by events. It is also our intention that   Simile's representation of events will support any functionality that is   allowed by events in the the SBML Level 2 specification.