Currently you can view multiple projects on Gantt at once, but you cannot see task-level detail. This makes it difficult to see if tasks from separate projects overlap. Would be ideal if we could expand (+/-) the project to see tasks on multiple projects to see which tasks overlap each other.

For example, if you have multiple projects in process for a client, and you need to space out their review windows (so you don't give them multiple deliverables to review at once) it would help to see the tasks together on the Gantt to ensure proper scheduling.