How to hide an text field that will open when an condition is for filled?

I can't find how to hide a text box that show when i choose an option from a drop down list.

Drop down
Options Active
Inactive
Don't care

Text box that start as hidden
Don't care? please write why is that?
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I just don't see how I can make that Tex box invisible from start.

Hi there,
You can simply right click on the text box field and click "hide field" in the context menu, like so:

I'm guessing you figured out how to setup conditions but here's a screenshot just in case.
Screenshot

Please let us know if you need any help with anything else.

Thanks!