>>I don't want the 3rd monitor.
Last year another poster reported experience setting up 6 monitors at his desk(!)
If I have his identity correct he is taking a hopefully short break, so cannot report experience to date, but I believe he had the monitors set up as one huge deskspace across which he dragged and positioned various systems. I don't think this would work with 2 screens for Gotomeeting as you'd need to stretch both width and height which is not possible with only 2 monitors.
FWIW, you can have a 4K monitor as your main screen and one of your existing monitors as screen 2, or vice versa. Windows is quite good at scaling across both monitors- and apart from seeing a whole shared Gotomeeting screen, the other benefit is testing your apps in 4K where VFP apps often have issues you'd prefer to sort before customers report them.
"... They ne'er cared for us
yet: suffer us to famish, and their store-houses
crammed with grain; make edicts for usury, to
support usurers; repeal daily any wholesome act
established against the rich, and provide more
piercing statutes daily, to chain up and restrain
the poor. If the wars eat us not up, they will; and
there's all the love they bear us."
-- Shakespeare: Coriolanus, Act 1, scene 1