Project groups
From Planfix
If you have accumulated many projects in your account, it makes sense to break them out into a group. Project groups let you visually separate projects in various Planfix sections. They have no other functionality.
Only users with administrator privileges can create and edit project groups. They can be created in a special interface, by clicking Group management in the Projects section:
The interface for working with project groups is a standard Planfix interface and doesn't require any additional explanations.
You can select a group for a project when creating the project. After creating a project, you can change its group in the Project details panel in the project card: