How to remove fields?

I just can't understand how to remove fields. I don't want to see anything in a article then the text in the main textfield. I don't want to see created, created by, last modified and revised by. I tried to go in to a field and unmark the type Im using but when applying/saving it automatically assigns the field to all types in the list.
I just want to have the title of the article and the text nothing between that.

I think the fields you're talking about are locked and automatically created by jom_content when you create an article. So you can't remove them, but if you don't want to display them you can go to the template manager in flexicontent.

For example if you go to the template manager and select your default template, go to the item view. There you can remove all but the items you want to be displayed. IF you take all but the "title" and "description" out of the template display sections, you should have what you want.