Hi @suleiry m thanks for posting in the Lucid Community! The sample Slack button there is actually just an embedded link to the Slack website. If you want to share your own Slack channel or workspace all you need to do copy the link to it and paste the link in your Lucidspark board. You can also use the left toolbar to add a quick link recent document or blank board and drag them into this Dynamic Matrix.

For more information on this feel free to check out our Embed links and media Help center article here. Please feel free to leave any comments or questions below!