Trying to setup a down directory

I’ll admit it, I have only had my KODI box H96 Pro for 2/3 weeks. So I’m really a noob.

Over the past weekend I attempted to install a new sd-card (32 gb). My goal was to experiment with downloads. Any downloaded file would be stored on the sd-card.

But, Create a new download directory and the option below it are grayed out.

How can i verify the sd-card is recognized?

Do I need to format the sd-card in my kodi box?

Is formatting done within Kodi or do I need to install ‘an app for that’?

Any thoughts or pointing me to readings would be appreciated.

Thanks Bill