I want to ask about messages longer than the max limit. We currently use Slack, and would like to migrate to an inhouse solution, so I am currently testing Mattermost. One of the big features of slack that we use is snippets ( https://get.slack.help/hc/en-us/articles/204145658-Creating-a-snippet) to share looooong java stack traces for debugging with the devs (for example). I could not find a similar function besides attaching a text file. Does this funcion exist and am I blind, or is this a future release feature?