Inspire Planner provides you with the ability to display fields as columns within the Salesforce Tasks Section displayed in the window when Assigning Tasks and when Listing All Salesforce Tasks (see images below).
You are able to display fields as columns within the Salesforce Tasks section when assigning tasks to resources.
You are able to display fields as columns when viewing All Salesforce Tasks via the List All Salesforce Tasks icon within the Project Toolbar.
This help article will walk you through how to display fields as columns within the Salesforce Tasks Section.
This section will provide you steps for Salesforce Lightning environment.
This section will provide you steps for Salesforce Classic environment.