Hi, Blynkers!
Could be placed function Blynk.virtualWrite(Vx,value) within the function BLYNK_WRITE(Vy) like as here:
BLYNK_WRITE(V25) //Low sensor level}
{
SenLow = param.asInt();
Blynk.virtualWrite(V27,SenLow);
Serial.print(“Low=”); Serial.println(SenLow);
}