How do I change an attribute on a Portlet's Filter to be Multi-select instead of Single-select?

Document ID : KB000044631
Last Modified Date : 14/02/2018
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Question:

How do I change a Filter Field on my portlet to be Multi-select instead of Single-select? Currently, I am only able to select one value to filter on for the field. 

Answer:

To make this change globally:

1. In PPM, go to Administration->Portlets->click on the portlet name 
2. Select the 'List Filter Section' tab then 'Fields'
3. Click the properties icon next to the field
4. Change 'Lookup Style' to 'Multiple-select' 
5. Click 'Save and Return' 
6. To make this change visible to all users, navigate to the 'General' tab for and click 'Publish'. Note: This will reset any custom user views. 

To make this change for one user:

1. In PPM, navigate to the portlet, select the 'Options' icon then 'Configure'
2. Select the 'List Filter Section' tab then 'Fields'
3. Click the properties icon next to the field
4. Change 'Lookup Style' to 'Multiple-select' 
5. Click 'Save and Return' 

Additional Information:

Reference the following cookbook article for more details on Publishing in PPM: When should you use the Publish button?