About 'GND'/ 'PWR port' name changing

[Rene_Poschl]

The net name resulting from the use of a power symbol is not defined by the value field. It is controlled by the name of the invisible power input pin.

More detail about how to make custom power symbols see (Click on the link to see the full tutorial.):

Tutorial: How to make a symbol (KiCad v5.1.x)

Creating a custom power port (power symbol or power label) Disclaimer: This part assumes a general understanding of the symbol editor. Basics are explained in the previous sections. A detailed introduction to power ports can be found on stackexchange. Short version of it: A power symbol is a special type of global label. The label name is fixed in the symbol itself and can not be changed in eeschema. (It is controlled by the pin name) This is the main reason why you would want custom power sy…