[duckapricottuba]

Would be nice to use conditions. Like, if there are multiple libraries in a city and I would like to evaluate being 15 minutes from any of them, have a condition able to be set -

15 minutes from: Library A OR Library B OR Library C

[WiggleGuy]

That actually is possible

Heatmaps are split into criteria, and each of those criteria can contain multiple places.

The criteria are OR clauses between any of the places, and the heatmap is an AND clause over all the criteria

So to do what you'd like, you'd place the libraries in the same criteria