Before we can create a FrameSetFrameSet, we must have a FrameFrame of some kind to put into it, so let's create a simple one:
We have set this Frame's DomainDomain attribute (ยง7.12) to A so that it will be distinct from the others we will be using. We can now create a new FrameSet containing just this Frame, as follows:
So far, however, this Frame isn't related to any others.