...
Make sure you configure the Quote Related Entity in Product Settings https://contemiseamlessinsure.atlassian.net/wiki/spaces/SHC/pages/19992087908302215/Global+settings+on+Products#7.-Quote-related-entity-configuration
You can see the related entities when you turn the configuration on
...
You can click the 
to select intermediaries for your quote. The entity record can be referred in https://contemi.atlassian.net/wiki/spaces/SHC/pages/1754923029/Entities#Create-an-Entity-Record Entities
...
5. Payment option
Please contact our support team to turn on the feature when you want to use it.
...