Various questions from newbie

I’m new to Manycam.
I searched on Youtube for comparison video’s of Manycamm vs Ecamm live.

When you search for Manycam you will get a lot of streaming videos with the title’ Default stream created by ManyCam’
Can the title not be changed?

Are there former Ecamm live users here that use Manycam that can tell me the why the switched , why they like Manycam and what is better in Ecamm ?

Is there a possibility to test a full functioning of version of the studio version for a week or so ?

Best regards,