Devtools 6.0.12 cannot edit a property that is a Map: is this implemented?

[space88man]

(Not sure whether this is a Pinia or devtools issue so cross-posted here: https://github.com/vuejs/devtools/discussions/1773)

When I inspect the store using the Pinia panel in Firefox/Devtools 6.0.12 a state property of type Map cannot be edited. I am not offered the "pencil" icon, only "Copy Value", "Copy Path".

If I have another state property that is an Array where I stash references to the same set of value objects, editing via the Array property works.

My question is whether write-access via a Map property is expected to work in devtools.