Priority linking rules

When linking to the priority inputs of a writable object, you must follow rules.

Only one link per input (level).
Levels 1 and 8 are unavailable for links. If a Boolean writable, level 6 is also unavailable.
Priority levels 1 and 8 are reserved for actions (emergency and override). Priority level 6 in a Boolean writable is reserved for minimum on/off times.

NOTE: Both rules vary from the Niagara priority input scheme, where a single priorityArray input was used for a writable object (AnalogOutput, BinaryOutput, and so forth). You can link that input to multiple priority-type outputs, including those with duplicate priority levels and/or levels also used for object commands (emergency and manual).