How to find at once the Video Messages in whatsapp groups which remains undownloaded.. ??

[AC Question]

I use to be on Mobile Data whole day & on WIFI at night..
i always receive many videos on Whatsapp .. But due to being on Mobile Data, i left them undownloaded for night..
But when i get home & my cellphone switched on home WIFI, those videos messages use to be pilled by many other messages..
Sometimes there are 100s of Videos in many groups, which are pilled by many messages..
I want to know the way, which make easier to find the Undownloaded Videos Messages at once & can be downloaded on WIFI without losing the Mobile Data..

Hope to be helped soon..

Thanks in Advance

GlassyRajat..