Create a flyout when cell is clicked

I think I may be trying to do the impossible here, but...

What I want to do is be able to click on a cell [Private Sub Worksheet_SelectionChange(ByVal Target As Range)]

That cell will have a range of cells associated with it, and a flyout will appear (much as the cell Comments flyout) which will contain the range of cells associated with that cell.

I would also like to know how to add a little "arrow" (as per the cell with Comments) that triggers the flyout.

I'd like the flyout to be a sort of popup range of cells and look like a range of cells, but if I have to create a comment with the data, then I'll do it that way...

The example image I've attached sort of shows what I want to do, but I'd prefer it to not looks so much like a comment!

Thanks.