I am using Firebase console for preparing data for a demo app. One of the data item is attendees. Attendees is an array. I want to add a few attendees as an array in Firebas
After writing my other answer I realized that you might simply be looking how to add push IDs in the console.
That's not a feature at the moment. Most of is either use different types of keys when entering test data or have a little JavaScript snippet in another tab to generate the keys and copy/paste them over.
Please do request the feature here, since you're definitely not the first one to ask.