Enable mirrored timeline to be used in Formula

I’m currently using the Portfolio function in the tool, and it’s been a significant improvement and a lifesaver compared to our previous method of linking multiple boards into a single portfolio board—so thanks for that!

However, I’ve encountered a challenge with the timeline in my portfolio board, which is mirrored from various project boards. I need to calculate WORKDAYS using the mirrored timeline column, but unfortunately, this function isn’t supported. The support team advised me to create an additional timeline column and manually enter the dates. With around 50 projects to manage, this isn’t a practical solution, as constantly verifying and updating dates is not an efficient use of time.

This seems like a feature that could be a quick win. When hovering over a mirrored timeline, the duration in days is already displayed, so perhaps this could be extended to treat a mirrored timeline as a regular timeline, allowing us to use it in formulas.

I hope you’ll consider this request.

I would love to see this enhancement as well to make good use of the native workload feature in the portfolio board. The workaround I received was to build out the Workdays formula on every project board and mirror this column onto the portfolio. Seems a bit clumsy.