That's not what they are ever going to provide, like the parent comment indicated because it isn't their goal. Companies or individuals which need your requirem

That's not what they are ever going to provide, like the parent comment indicated because it isn't their goal. Companies or individuals which need your requirement should/are already using a competitor that does allow you to do so, with all the limitations that the extra security gets you (search, integrations, etc), e.g. mattermost or rocket.