Currently custom date fields used on a record detail view are available for selection on a custom roadmap. However, if date fields are included in a worksheet, those are not available on a custom roadmap. It would be good to include those worksheet dates, and dates from calculated columns in a list view.
We would like a similar functionality. We have a worksheet field that calculates the release dates from 3 custom release fields (private preview release, public preview release, and general availability release). We would love to be able to view those worksheet date fields on a GANTT chart (roadmap) as milestones.