How to handle subtasks/child bots between multiple bot developers?

Hi. We are currently switching from 11.3.4 to A2019.

Previously we had common tasks such as logging to sql db among others in specialized subtasks, which we called on demand from many other bots.

So I migrated this bot and uploaded it to the public folder Public\Bots\Common\Logger.atmx.

Now, I would like to create a new bot, that calls this Logger subtask. But since its in the public folder I cannot. The option in the run task package for Control Room file only shows the public folders, not the files in them. So I can't select the Logger. If I check out the Logger my colleagues cant acces the file anymore. What am I missing?

Any advise is greatly appreciated! Thanks!