Anyone could help me with snapchat?

Hello, does anyone know how to post on snapchat from gallery to stories and make it look like its coming from camera? And is it possible to use android emulator with snapchat on pc to have many accs? Thanks

For the android emulator part there's bluestacks, nox, and about ten other softwares. Bluestacks was top dog on the scene for long time but I tried nox recently and it's much more light weight.
Last year I was juggling dozen of snapchat accounts on 1 device/IP w/o issue. Just cleared app data btwn every login. Some android emulators run inside virtualbox so it would be very easy to clone instances for multiple accounts.
You used to be able to post from gallery via Casper app but looks like they got shut down. Don't know what app everyone is using these days.

Nox is your best bet only if you need to run multiple instances, you'll probably run into a bug which stops you from logging in on SC - or you cannot type the credentials.

Restarting your computer, changing the model in Nox settings / IMEI will fix this. - but it will come back as Nox doesn't have any support.