HI,
we are asking for this update for quite sometime now. Because people see a picture in catalog, but they don't know there are 10 different variations inside.
Aliexpress solved this by a line under the picture "10 models" (screenshot
http://prntscr.com/fo62uu) . This is extremely helpful with for example phone covers, t-shirts, fidget toys etc. sometimes the supplier puts 20 totally different models in 1 listing.
See this link on this forum too :
https://forum.aliexpress-na-russkom.ru/posts/9801/