Enable Roll Up feature for more dates in the plan

Problem Definition

I would like to use the Roll-up dates feature on Advanced maps but for more than 2 custom fields, such as:
(updated start date, updated end date, target start date and target end date)

Suggested Solution

We could add another set of pair of dates fields to do the proper roll-up

Workaround

Roll up the first pair of date fields and then reconfigure for the other pair of date fields.