Home screen icons are all too small. My close up vision isn't very good so I need help getting through the main menu. Default grid choices are 6x5, and even worse 8x5. I'm looking for 4x4, or 4x6. or even 2x2.

Strangely, all the video tutorials I've found show additional choices, which would solve my problem if I had those selections.  Instead all I have is 6x5 and 8x5, which results in unreadably small to my eyes.

How can I add more choices to the 2 grid choices?

If I can't make the icons bigger, I'll have to admit defeat and return the tablet.

Thanks for any help.

Bruce.