To do Alt + J I on Mac in Excel, download and install Accelerator Keys, then press Option, followed by J, I.
Command: Switch to Draw Tab
This is how to do Alt + J I on Mac in Excel with Accelerator Keys, the native ribbon and alt key shortcut solution for Mac users who get more done with Excel.
Alt + J i switches to the Draw tab in Excel’s ribbon. The Draw tab provides tools for drawing, annotating, Marking up your spreadsheets using ink, shapes, Highlighting. This is a contextual tab that appears when drawing tools are available.