(Table Element) Can't see column and row edit buttons for Table

Hey folks - I’m trying to experiment with the new Table Element and am having difficulty. After inserting the Table into a group, I can’t seem to figure out how to adjust the column widths.

I’ve watched tutorials but don’t seem to have the same UI visible to allow me to adjust the table dimensions or column widths, there’s no slider. You can see in my screenshot below. The second screenshot is of a tutorial and I’ve highlighted in red what I’m missing.

I’ve tried to figure this out for an hour and have been unable to. Any help would be greatly appreciated, thank you!