(EDIT: Sorry, I didn't make it clear in the title, this is relating to posting a gallery on Instagram) I use the trick in Chrome of presenting yourself to IG as coming from a mobile device to be able to post from a computer, but this doesn't allow me to post multiple pictures per post. There's no multiple photos button. Is there any way to post a gallery from a computer?
So, if you click on the Image button along the forum post toolbar, you're not able to enter one URL after another on each line? That's how you post images here.
However Instagram still don't allow to post multiple pics from computer, You can simply add multiple pics from app but this feature still isn't available on Desktop Mode.