Create a new post in Retriever
Go to Publish, Click Create new content
Step 1: Access the Publish panel
Step 2: Press "+ New" and then "Create post"
Step 3: Select which channel(s) you want to create a post for
Step 4: Create your content in the Template by adding "Image/Video" and "Caption/Message".
Step 5: Add the image/video and caption in the "Template" and then you can make adjustments for the different channels in their own tabs.
For example, if you want to edit the ratio on the Instagram picture. Press on the IG tab and then the pencil:
Select the ratio and then press "Save" when done:
Step 6: Select if you want to save your post as a Draft, Send for Approval, Schedule or Publish now.