I'm trying to figure how to post multiple pics in

I'm trying to figure how to post multiple pics in same post-I've watched how to post a pic video but doesnt say how to post multiple images-MaxShocker gave some tips but didnt work for me-probably my fault-anyway I've posted many pics but never able to post more than 1 in same post-when I try to save post or whatever other option it either posts or lose the pic I've l already provisionally applied.