Yes, this is currently available on the web version only.
When scheduling a post, simply select all accounts you would like the post to be made to. We will by default select all accounts you have connected, so if you do not want to post to all accounts just deselect those.
When posting to multiple accounts on different platforms, you will also have to option to customize the content.
Having trouble finding the account you want to post from?
Why can I only select one Twitter account?
What happens after the posts have been scheduled?
Once scheduled, the posts will become separate posts that you will be able to view and edit separately. You can only schedule in bulk, you will not be able to edit already scheduled posts in bulk.