help and workflow methods?

I used the beta trial previously and got good results after some playing with setting (blindly, mostly) using a set of screen shots from Google Earth–not even real photos.

Now, having bought a license, I am not getting usable results from a set of interior photos. Most of the shots do not get registered. All overlap, perhaps not enough? There is a way to manually register, isn’t there, the old 'mark corner ‘A’ on each shot, then corner ‘B’ ?

I’m hoping there is some document that goes over these things. Is there?

Thanks!

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