Cheers Guizmus I think I get this now. . .
The 'Speed' Global Variable adjusts the movement speed between 0 and 1.
(I didn't type in a decimal number like 0.1)
Set progress to clamp(progress + dt*Speed, 0, 1 <--Breakdown
1. Clamp regulates movement between, under or over the minimum & maximum (0 & 1)
The value will return to a position if X-Value is lower than the minimum, hence being able to scroll back if you press a button for the 2nd time.
2. 0 and 1 represents non-movement & movement. When I added 0.5,1 at the end of "dt*Speed" it seemed faster because the scroll began in mid-movement (0.5)
3. I'm not sure what the 'Progress' variable does. I initially thought it was the Speed Global Variable. I then thought 'Progress' meant movement or non-movement, like a toggle switch. 0=false. 1=True
I really appreciate your example, I'm enjoying learning how to solve these logic puzzles. I hope I understand the concept of Clamp now, I read the manual.