diff --git a/profiles/convert.js b/profiles/convert.js
index c61ebf2..f4c3495 100644
--- a/profiles/convert.js
+++ b/profiles/convert.js
@@ -87,7 +87,8 @@ function checkUpdate(thumbnailsFolder, existingFiles, filename, presentationLast
     // ignored code
     const thumbnailLastUpdated = existingFiles[filename].getLastUpdated();
     const delta = (presentationLastUpdated - thumbnailLastUpdated);
-    mustUpdate = delta > (7 * 24 * 60 * 60 * 1000); // one week
+    //const mustUpdate = delta > (7 * 24 * 60 * 60 * 1000); // one week
+    const mustUpdate = delta > (60 * 60 * 1000); // one hour
     if(mustUpdate) {
       Logger.log('Thumbnail already exist but needs to be updated as it is too old: ' + filename + ' delta ' + delta);
       trashFile(thumbnailsFolder, existingFiles[filename]);
diff --git a/profiles/ui.js b/profiles/ui.js
index c649928..abd2a33 100644
--- a/profiles/ui.js
+++ b/profiles/ui.js
@@ -34,7 +34,8 @@ function getTargetFolderName() {
 }
 
 function showThumbnailsSidebar() {
-  const members = convertSlidesFromPresentation(SlidesApp.openById(getTestPresentationId()));
+  const presentation = SlidesApp.getActivePresentation();
+  const members = convertSlidesFromPresentation(presentation);
   const sortedMembers = members.sort(function(m1, m2) {
     return m1.fullname.localeCompare(m2.fullname);
   });
diff --git a/timesheet/actions.js b/timesheet/actions.js
index d75830c..1701a25 100644
--- a/timesheet/actions.js
+++ b/timesheet/actions.js
@@ -3,12 +3,18 @@ function snapshot(spreadsheet, sheetNames, category) {
   const snapshotEndpoint = PropertiesService.getScriptProperties().getProperty('SNAPSHOT_ENDPOINT');
   const response = postData(spreadsheet.getId(), exported, snapshotEndpoint);
   Logger.log(response);
+  snapshotAllCalendarOfSpreadsheet(spreadsheet);
   return response;
 }
 
 
+// run this within Leads & Opportunities sheet only
 function snapshotAll(spreadsheet) {
   const sheet = spreadsheet.getSheetByName('Accounts');
+  if(!sheet) {
+    Logger.log('No sheet Accounts found, is this a the Leads & Opportunities sheet?');
+    return;
+  }
   const mapping = getHeaderMapping(sheet);
   const accounts = sheet.getRange(2, 1, sheet.getLastRow(), sheet.getLastColumn()).getDisplayValues();
   const entries = convertToEntries(accounts, mapping);
@@ -36,7 +42,6 @@ function snapshotAll(spreadsheet) {
   });
 }
 
-
 // needs work, won't activate
 /*
 function change(e) {
diff --git a/timesheet/calendar.js b/timesheet/calendar.js
new file mode 100644
index 0000000..bcea2d9
--- /dev/null
+++ b/timesheet/calendar.js
@@ -0,0 +1,61 @@
+function snapshotAllCalendarOfSpreadsheetTrigger() {
+  snapshotAllCalendarOfSpreadsheet(getActiveSpreadsheet());
+}
+
+function snapshotAllCalendarOfSpreadsheet(spreadsheet) {
+  const sheet = spreadsheet.getSheetByName('Balance');
+  const mapping = getHeaderMapping(sheet);
+  const accounts = sheet.getRange(2, 1, sheet.getLastRow(), sheet.getLastColumn()).getDisplayValues();
+  const entries = convertToEntries(accounts, mapping);
+  const responses = entries.map(function(entry) { 
+    Logger.log(entry.resource);
+    Logger.log(entry.fullname);
+    if(!entry.calendar) {
+      Logger.log('No calendar associated to %s', entry.resource);
+      return null;
+    }
+    const calendar = CalendarApp.getCalendarById(entry.calendarid);
+    if(!calendar) {
+      Logger.log('not a valid id: %s', entry.calendarid);
+      return null;
+    }
+    return snapshotCalendar(calendar);
+  });
+  Logger.log(responses);
+}
+
+function snapshotCalendar(calendar) {
+  const exportData = exportCalendar(calendar);
+  const snapshotEndpoint = PropertiesService.getScriptProperties().getProperty('SNAPSHOT_ENDPOINT');
+  exportData['category'] = 'Timesheet';
+  const result = postData(calendar.getId(), exportData, snapshotEndpoint);
+  Logger.log(result);
+  return result;
+}
+
+function exportCalendar(calendar) {
+  const id = calendar.getId();
+  const name = calendar.getName();
+  const timezone = calendar.getTimeZone();
+  
+  const obj = {
+    id: id,
+    name: name,
+    timezone: timezone,
+    apptype: 'Calendar',
+  };
+ 
+  const events = calendar.getEvents(new Date('2018-01-01'), new Date());
+  const eventsArray = events.map(function(e) {
+    return {
+      name: e.getTitle(),
+      startTime: e.getStartTime(),
+      endTime: e.getEndTime(),
+      creators: e.getCreators()
+    }
+  });
+  
+  obj['events'] = eventsArray;
+
+  return obj;
+}
\ No newline at end of file
diff --git a/timesheet/data.js b/timesheet/data.js
index 12202b8..31aa6b0 100644
--- a/timesheet/data.js
+++ b/timesheet/data.js
@@ -14,7 +14,11 @@ function export(spreadsheet, sheetNames, category) {
   
   sheetNames.forEach(function(name) {
     var sheet = spreadsheet.getSheetByName(name);
-    obj['sheets'][name] = { data: exportSheet(spreadsheet, sheet) }
+    if(sheet) {
+      obj['sheets'][name] = { data: exportSheet(spreadsheet, sheet) }
+    } else {
+      Logger.log('No sheet %s in %s', name, spreadsheet.getId());
+    }
   });
   
   return obj;
diff --git a/timesheet/init.js b/timesheet/init.js
index 39e0c07..707cf8b 100644
--- a/timesheet/init.js
+++ b/timesheet/init.js
@@ -22,34 +22,21 @@ function onOpen() {
   const orgName = PropertiesService.getScriptProperties().getProperty('ORG_NAME');
   const menu = SpreadsheetApp.getUi().createMenu(orgName)
   if(getActiveSpreadsheet().getSheetByName('Accounts')) {
-    menu.addItem('Snapshot All Timesheets', 'snapshotAllTrigger')
-    menu.addItem('Snapshot Accounts', 'snapshotAccountsTrigger')
+    menu.addItem('Snapshot Accounts & All Timesheets', 'snapshotAllTrigger');
   }
   if(getActiveSpreadsheet().getSheetByName('Timesheet')) {
-    menu.addItem('Snapshot Timesheet', 'snapshotTrigger')
+    menu.addItem('Snapshot Timesheet and associated calendars', 'snapshotTrigger');
   }
   menu.addToUi();
 }
 
 function snapshotTrigger() {
   const spreadsheet = getActiveSpreadsheet();
-  snapshot(spreadsheet);
+  snapshot(spreadsheet, ['Timesheet', 'Balance'], 'Timesheet');
 }
 
 function snapshotAllTrigger() {
   const spreadsheet = SpreadsheetApp.openByUrl(PropertiesService.getScriptProperties().getProperty('DEFAULT_ACCOUNTS_URL'));
   snapshotAll(spreadsheet);
-}
-
-function snapshotAccountsTrigger() {
-  const spreadsheet = SpreadsheetApp.openByUrl(PropertiesService.getScriptProperties().getProperty('DEFAULT_ACCOUNTS_URL'));
   snapshot(spreadsheet, ['Accounts'], 'Leads & Opportunities')
-}
-
-// TODO: doesn't trigger?
-/*
-function onEdit(e) {
-  Logger.log('onEdit called ' + JSON.stringify(e))
-  change(e);
-}
-*/
\ No newline at end of file
+}
\ No newline at end of file