Custom field permissions change when a value is true
I'm trying to set up a help desk where the user has a few check boxes they can mark as true. I want the page to be dynamic where fields will appear and disappear depending on a certain value. I want more custom field to appear once a check box is marked true. So if the user checks the box indicating they have submitted paperwork I want a text box to appear for them to enter the title of the paperwork. Is this possible to do while the ticket information is being entered? Or do I just have to have everything visible right from the start? I want to set the custom field to hidden and on the fly change it to user create.