Deadline mode with multiple dates/status

I have a project that has multiple deadlines, structured in phases. So when it enters “phase 1” there’s a new deadline, etc.

I have one status column that reflects the different phases of the project, and several date columns that I fill with each deadline as appropriate. But it turns out I can only use the deadline mode with one date column.

Ideally monday would let me choose a particular status to check the deadline off, but I don’t see that happening in the near future.

If I mark several colors as “complete” then they affect all the columns in deadline mode.

Is there any workaround for this?

Maybe you could use subitems with phases and the item as overall project.