Search for User Manual and Diagram Collection
Defining net classes by area on a schematic Differential pair class altium Class assign altium unconnected pins voltages nets blanket higher schematic put area around
Defining altium pcb nets
pcb - Altium: how to assign a net class to unconnected pins
Defining Net Classes by Area on a Schematic | Online Documentation for
Altium - How to Create Net Class and Differential Pair Class - YouTube