Those would all be collections. On a Portfolio report, you can show Active projects with this code in a column:
displayname=Active Projects
listdelimiter=<div>
listmethod=nested(projects).lists
textmode=true
type=iterate
valueexpression=IF({status}="CUR", CONCAT("• ", {name}), "")
valueformat=HTML
You cannot show Tasks or issues from a Portfolio report because that would be a collection of a collection (tasks and issues are project collections). You could click into a project and see a collection of tasks and/or issues for that project though.
TIP: if this solved your problem, I invite you to consider marking it as a Correct Answer to help others who might also find it of use.
