I would like to embed / insert an image into a Google Sheet cell, but i only want it to appear (pop up) when you hover over the cell (almost like the way that their Comments work... the comment box pops out when you hover over the cell).
I have contacted Google to see this is possible and they said that i would need to write custom code to do it.
Can anyone offer any advice or recommendations on this? I need to be able to share these documents (Google Sheets) with other people and i don't want them to have to download any additional tools or plugins.
Thanks in advance for your help.