For those not tuned in to the G Suite updated blog Google have announced the general availability of the new add-ons for Calendar, Gmail, and Google Drive for end users. For G Suite domains on rapid release the ability to add these new types of add-ons will start appearing over the next 15 days. Google are launching with a selection of add-ons from partners while developers will have to wait:
Organizations can also build their own add-ons using Apps Script. Note that the developer feature will be fully available in early February — we’ll provide an update here once it’s fully rolled out.
PS have you subscribed yet to
AppsScriptPulse? A site collecting the latest news and examples from the Google Apps Script community
best wishes
Martin