I have a US Asylee/Refugee Travel Document. This allows me to travel to a few countries within the Schengen area without a visa requirement.
I traveled to Amsterdam and Belgium two years ago using my travel document and visa free. I am going to visit Belgium again in less than a month, and, while there, I would like to visit Italy for two days for a concert. How would that work? Is there a way for me to apply for a Schengen Visa while I am already in one of the Schengen Countries?