Use the Frame number box to specify the number of the frame you want to display:

Use the spin buttons to add the specific Frame number. Alternatively, type the number directly into the Frame number box.

Below is an illustration of a MultiFrame object in the Objects tab of the Organiser.

Opus identifies each frame in a MultiFrame object by a number, in this example there are 4 Frames:

Introduction is Frame Number 1

Opus Info is number 2

Presenter info is number 3

Opus Pro XE info is number 4

Frames are always numbered in a MultiFrame object from the top Frame and beginning with the number 1.