Overlapping tasks/separate milestones on Gantt Chart

Overlapping tasks/separate milestones on Gantt Chart

Hi! I have multiple project phases (milestones) moving at the same time. When viewing the gantt chart I can't filter out tasks by milestone so they are overlapping. I can only filter "Open" and "Closed" milestones. This is really screwing everything up. Is there a function that I am missing, or can I bypass this in any way? Please help.

Regards,
Andrey

PS: I'm using the premium version.