" What does it mean to comnine?"
It means my fat fingers hit the wrong key, that's all. Interesting word, though. Must look it up and see if it's a real one. :-)
It's easy enough to put a single image into a singl cell and another image into another cell in the same column, and so forth. Just copy the image, select the cell and Paste. To remove the image, select the cell, open the format Inspector, choose cell, and choose No fill. To replace the image, just paste in a new one.
With the image pasted in as image fill, you can make the cell larger and the image will expand to fill the cell, You do need to pay attention to the aspect ratio (width to height) to avoid short and wide or tall and thin images, and you'll have no real control over that if others are the ones viewing the file.
As format, not content, the images themselves are not searchable. If you want to be able to locate one, you'll need a file number, name or description in an adjacent cell to use as a search target.
Regards,
Barry