In this article, we'll go through how to post to one of your collections
Method 1
1. Click the upload button on your home screen
2. Below the "Upload photo" icon, select the option that says "post to"
3. Select the collection you'd like to post to and your gallery (if you also want to post here)
Method 2
You can also go to your already posted photos and click the 3 dots in the top right hand corner and click "edit post". This will take you back to the above screen so you can add photos already posted to your collections!