If you're looking to control the iDR from an existing PC network then the PL Client software may be of interest.
This is a virtual-wallplate GUI controlling levels, mutes and patches etc. which can be run on a user's machine, for local controls or as much potency as is programmed for an individual position.

The client-side screens are configured by the installer using the PL Designer application, included with the free iDR System Manager software. Follow the link and choose ‘Software’.

After the 10-day trial period, PL Client requires registration (which is free)

More information on PL Client is available in the iDR System Manager software.

Other non-network control methods are:
MIDI
RS232 (Sys-Net).