The following feature, available for v. 4, has been extended in v. 5 to accept a range of X server displays or ports. The 'DisplayDefault' key has been also renamed into 'PhysicalDisplays'. See: https://www.nomachine.com/FR01N03001 for more details.

If there are multiple physical displays available, it should be possible to configure the server for connecting to a specific one. This can be done by adding a new key into the node configuration file:

#
# Specify on which phisical display the server must connect.
#
#DisplayDefault :0