Function changeEventPanelTab

app/core/store/modules/events.js:101–103

(state, type = 'edit')

      Vue.set(state.eventPanel, 'visible', true)
    },
    changeEventPanelTab (state, type = 'edit') {
      Vue.set(state.eventPanel, 'type', type)
    },
    closeEventPanel (state) {
      Vue.set(state.eventPanel, 'visible', false)
      Vue.delete(state.events, 'temp-event') // always remove preview