sharing/not sharing tasks

Hi Michael, you can share/unshare by clicking the share icon (as seen below). You'll see on the task itself below the assignee icons on the right.

Everything you need to know is over here on the Knowledge Base article Sharing a Task.

If you're just getting started, you may want to take a look over here at our Getting Started section on the Help Centre.  I also want to mention these Webinars that will be of huge help to you getting started.

• Ask the Expert: Mastering Collaboration and Sharing in Wrike
• Ask the Expert: Setting Up Your Workspace

Any questions, your Community is here to help! 🙌