From the image and text analysis, the image is from the 2nd page of grub menu.
If you read again previous advice, you should understand.
1>2 means activate the second choice at the 1st page (menu line numbers start from zero 0, so 1 is second line), which is the Advanced menu options submenu, and on the new page, boot the 3rd line (2 is 3rd line).
Keep trying and reading, until you succeed. 