NB: Only a ValveTrack administrator user role is able to use the 'set valve to read only' functionality. All other roles (Manager and Viewer) will see the tick box greyed out and unavailable:

The functionality to lock down the edit valve data is found on each individual valve's overview sub-section, with a tick box called 'Read only'

Once 'Read only' is ticked and active, the Viewer and Manager user roles viewing the relevant locked valve will see a pad lock icon (instead of the pen icon indicating edit possibilities) with an explainer text as hover-over text bubble if they want to click the 'Edit valve data' button. The audit history is also tracked in the Change history.

Only the administrator role can unlock the 'Read only' tick box, which is seen as a toggle option color (more distinct color scheme) compared to the more greyed out option seen by Viewer and Manager roles (see above picture).

Also, nobody can delete the valve that is set to 'Read only', as it will give you the following error message in the Valve list overview:

Once the valve record is unlocked the administrator, the audit change history is updated and the valve is now again editable by both the Manager and Administrator roles.