Our goal is to never make you upload the same media file twice - here's how we did that!
Upload your media into the folder you want it to live in and click Save. Then you can reorganize the order of the media in that folder by dragging them around (the media file at the top will be first in the playlist when you share it).
1. Click on the media folder, scroll down, and click "Post To Home Feed"
2(a). Type the text you want for the post. If it is a locked/paid folder, you can give a preview to free members. You can choose to upload a custom media file as the preview (you have to if it is an audio file/folder).
2(b). You can choose to preview one of the files in the media folder by choosing "Select from existing files". Then choose the file. And how many seconds you want free members to preview (starts at 0 seconds and goes up to 60 seconds).