Changing company name and not losing work done in Zoho Creator/Books/Forms

Changing company name and not losing work done in Zoho Creator/Books/Forms

1. I want to subscribe to Zoho One today using my personal name as the company name but in the near future I will use a business name (which I don't know yet). Will I be able to change it or do I have to start over? 
  
2. I am currently testing the free versions of Zoho Creator, Zoho Books and Zoho Forms. If I subscribe to Zoho One, will I lose the work I've done in Zoho Creator, Books and Forms? 

3. I noticed that when setting up a Zoho One account I have add a domain. Will I also be able to change the domain so I can use the new company domain?

Thank you!