Signals Notebook: Unable to see HELM Libraries

Description: Users may experience issues accessing HELM libraries where no libraries are visible in the interface, even without specific error messages being displayed.

Solution:
This issue typically stems from user permission or group association problems. Follow these troubleshooting steps:

1. **Check User Group Associations:**
  - Navigate to Signals Configuration > Group Associations
  - Locate the affected user's group and verify the association is correct
  - Ensure the user is assigned to a group that has HELM library access

2. **Verify Security Policies:**
  - Check if appropriate security policies exist for HELM Monomer Library access
  - Create or edit security policies using the following format:
    RULE "HELM Monomer Library Access"
    IF user group in "[GROUP_NAME]"
    AND attribute "HELM Monomer Libraries" match
    THEN grant "entity.full_control"

3. **Review User Role Permissions:**
  - Go to Signals Configuration > User Roles > HELM Monomer Libraries tab
  - Ensure the following permissions are enabled as needed:
    - Create & Manage Libraries
    - Access Monomer Curation App
    - Add New Monomers (requires Access Monomer Curation App)

After making these configuration changes, users should be able to view and access HELM libraries properly.