Anybody got tips to beat night 5 on hard mode (with all the Evil Ending animatronics)?

Hey,uhm,I already asked this on the general page,but nobody answered me,so imma ask it again here:could ye explain ne how to use Media Player?I never did that.Thanks.

Hello,uhm,so,i have trouble using the media player for making my custom guard since i never used it before, could you help? Also,is there a mod that lets you play all the 4 night guards togheder,like a single character?