Running Out of Room in Reason?

Propellerhead’s Reason software is quite powerful and a blast to use.
However, you can quickly fill up your “rack” with virtual
instruments, effects, and other devices. To conserve space, Reason has
a really nifty feature that’s called “Device Folding.” All the Reason
devices have a down arrow on the left side of the screen. Click on it
and the device folds up or collapses, thus giving you more rack
space. Clicking on the right arrow on the same side of the device
will cause it to unfold in case you want to make further changes.