For info, I had contacted A&H presales to ask about the user security features on the GLD-80 and here is the response:

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It is possible to set up to 8 password-protected User Profiles, and set different permissions for each one. This is a preliminary list of features or settings that you can deny access to:

SETUP
– Utility screen
– Configuration (bus architecture etc)
– Control Setup (strip layout)
– Rotary functions
– Sel buttons
– Mix buttons
– Audio Settings (e.g. sync from I/O module)

MEMORIES
– Show Manager
– Library Manager

ROUTING
– Input Patchbay
– Output & FX Patchbay

CHANNEL
– Name/colour
– Preamp
– PEQ
– GEQ (outputs only)
– Dynamics
– Delay
– Gang
– DCA assignment

Unfortunately it’s not possible to apply a permission to a range of channels only.

The preliminary User Guide will be updated shortly to include this information following the release of the V1.0 software.

As with iLive, you can assign a default Scene to each user (not a Show). The user scene gets recalled every time there is a user change.
So if you log in as user ‘Operator’, and you were previously logged in as ‘Admin’, the ‘Operator’ default scene is recalled.