Clara BW Indexing

I have just got my Kobo BW and am really impressed with it

I've transferred around 130 epubs to it using Calibre (which converted them to kepubs). Vast majority are fiction novels of 300-600 pages

I can't seem to work out if it is still indexing or not. There is no 'processing' message I could see as a previous user here helpfully suggested would appear. And - unlike kindles - I can't search for a word in any book in the library to check. I can only search titles, authors etc

Is there any way to know if there is an issue with indexing other than monitoring battery life?