Navigate to the home page and select a project where you want to assign the user.

Click on settings - BangDB BugTracker

Now, Go to "Settings" -> "Project Settings" and click on "Manage project" like shown in the image below.

Click on settings - BangDB BugTracker

From the "Add Existing User" dropdown menu, select a user. The user will get assigned to the project.

Click on crm settings - BangDB

The user will get added.

Click on crm settings - BangDB

Once you're done with your changes. Click on Save Project (Draft).

Changes are now saved locally, in order to save these changes on the app. Click on Save.

Click on crm settings - BangDB