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The prefocussing lenses consisted of two stages: a Y-motion with states records and a X-motor to adjust the position for optimal focus. The screen still need to be developed as well as the python class.

The prefocussing screen from the home screens in the "Beamline" tab. The screens look like:

<inter screen grab>

The screen shows <stuff>. 

They are also available from the <hutch>3 hutch-python interface. Detailed documentation is here.

A brief list of available commands are:

<prefocus>(): return <most important info>

<prefocus>...