Do you know if there any plans to implement such a feature? In an ideal world, I would like to set a bubble size to an absolute value that matches the map scale indicator (i.e. a bubble of 500m radius). Not sure if this is even technically feasible, but it would be really neat 🙂
I've played around with the workaround you provided, but I'm afraid that's not going to cut it. Right now I've just created two fixed zoom levels at which the set bubble size is around 500m, but the inability to zoom by scrolling sort of detracts from the dynamic value of the map object.