Replace string in HTMLbars/Handlebars expression with component

I've got a blog. Each blog-posts can have multiple downloads. For the downloads I created a component downloads Currently I render them at the end of each post like this:

{{#each download in sortedDownloads }}
  <p>
    <a class="dl-button" {{ action "incDownload" download }}>
      {{ download.name }} ({{ download.size}}MB)
    </a> - {{ download.downloadcount }} Hits
  </p>
{{/each}}

I'd like to be able to write something like [downloads] in the post content itself (which is simply rendered via {{{post.parsedBody}}}and replace it with a partial like the above one.

Is this possible or do you have a better way to achieve this?