Pdfcreator 1.9.1 We can no more combine documents ?

With previous versions of Pdfcreator, I used to put several printings inside a print queue, then combine them into one document.
But with Pdfcreator 1.9.1 I don't see anymore the buttons for that (something like "queue" or "wait" ...). Was this useful function removed ????.

I have to re-install version 1.17.2 ...