If you mean some external speedtest, then the answer is "no". If it shows name of your ISP, it's because connection came from there and it will happen as long as you use this ISP. And if you switch to another one, it will show name of the new ISP. In short, you can't hide on internet and no RouterOS option will help you.
Hi, I am not sure if I did explain myself. I have read a little bit about changing the name of the ISP as it is shown in "speedtest.net" to any other but that involves public IPs to be assigned and many more things. I was asking that if possible to have an easier approach to the RouterOS to have this because of the WISP system. I balance with a RB from two different ISP providers and it would be nice to have our own ISP shown in pages such as the one in speeds.net.