Hiring for customization: Multiple Image and Attachment grouping similar to Slack

I am looking for some to help to create a customization to be able to group images and attachments together in the post (similar to Slack) versus how Rocket Chat does it today (individual Posts for each attachment or image). Attached are screenshots of how I would like it to look like based on Slack.

Would like it similar Slack

Hello,

I would be glad to assist you.

To discuss further in detail kindly reach me at garry@cisinlabs.com or Skype me: cis.garry

Looking forward for your response.

Thanks

Garry

Thanks @garry_j ! I sent an email and messaging you via Skype. Let me know when you are able to connect.

Hi Doug,
What you are wanting done is well within my area of expertise and I would be glad to help you out on this.
You can reach me on andrewjohnson56782@gmail.com
Cheers and Have a great day ahead,
Andrew

I emailed you and have not heard back. Please advise.

@Andrew I emailed you and have not heard back. Please advise.