Display Manager on Mac

26 Restoring application positions
You may use monitors with different models or resolutions in your daily routine, and
you may apply different window layouts on them. Dell Display Manager registers the
monitor you have reconnected and restore application positions accordingly.
In case you need to replace a monitor in a monitor matrix configuration, you can
save the window layout before replacement and restore the layout after a new
monitor is connected.
NOTE: You should keep your applications running in order to benefit
from this feature. Dell Display Manager does not launch applications.