Add filter for things under ground, level=-*

[tordans]

Description

When mapping in areas like https://www.openstreetmap.org/edit?note=4139556#map=20/52.51122/13.40564, I want to be able to hide the features that are underground. Especially to prevent my edits to snap and glue themselves to those underground features.

AFAIK there is no way to do this today.

#9584 could be a solution but will be more complex to finish, it looks like. So in the meantime, maybe we can add another filter for things "Underground"?

GoMap has such a filter and that helps a lot.

Screenshots

No response

[kjonosm]

See also #7261