Sorry Keith but the Forum is a modular add on to the MyTimeMedia commercial platform bespoke software and it has been made clear that it will not be developed further.
So I'm afraid you are stuck with the scrolling and of course the rather convoluted means of adding images to posts that we all love.
You do of course have the option to use your fingers sequentially in scrolling which will ensure they all benefit from a similar degree of exercise. 
Colin