You can Import my SOVOL SV07 Profile to print fast and with the external fan. 

The only part I copied from Makersmuse was the start of the external fan. 

When you create a profile for PETG you should remove the external fan cooling and manually start it with like 5% for small objects. But generally the part cooling fan from the extruder is sufficient for PETG (you shall print PETG slow.. → My experience was at a max of 80mm/s with the SV07).