measure‑specific filter or parameter in reports

Use case:
I’m building a meeting‑based report that shows, by meeting type on the X‑axis:
Y1: Average (or total) meeting duration across all customer companies
Y2: The same metric, but only for one specific company (a “focus company”)
What I’m missing today is a way for the viewer of the report (e.g. someone looking at the dashboard) to dynamically choose that “focus company” via a filter/parameter, without editing the report and without changing Y1.
In other words, I need a measure that can be defined as “metric for [Selected Company]”,
Where [Selected Company] is controlled by a filter or parameter that the viewer can change at runtime,
And that filter applies only to that measure, not to the entire report.
Right now, report/dashboard filters always affect the whole report, and formulas can’t reference a dynamic “selected” company, so the only options are hard‑coding company names in formulas or duplicating the entire report.
This type of “focus entity” feature (measure‑specific filter or parameter) would be very valuable for comparing one customer vs. others in a single chart.