Context Menu > OSM Data Layer

Data layers contain map data objects downloaded from OpenStreetMap or created and edited by users, usually meant to upload them back to OSM. Special layer states may block this.

Context menu

OSM data layers have following context menu:

	Activate	Shift+A⤳[0–9]
	Show/Hide	Shift+S⤳[0–9]
	Delete
	Merge
	Duplicate
	Save
	Save as ...
	Export to GPX ... (only in expert mode)
	Convert To GPX Layer (only in expert mode)
	Rename Layer
	Discourage upload (only in expert mode)
	Data consistency test
	Info

Layer State

By default all actions are possible with the OSM data in a layer. But the three switches upload, download and locked can change this:

Layer state		upload	download	locked	Behaviour
	Default				No special behavior.
	Upload discouraged	false			A warning before the upload appears.
	Upload impossible	never			Uploading is not possible, the upload button is greyed out.
	Download impossible		never		A new layer is created during a download.
	Upload and download impossible	never	never		The combination of the two states above.
	Locked			true	This includes download=never and upload=never and additionally blocks any editing of the data.

The Upload switch can be toggled to false with Discourage Upload, the context menu item mentioned above. For all other switches the .osm-file must be edited with a text editor. In the second line the switches are part of the osm key.

# Default:
<osm version='0.6' generator='JOSM'>

# Upload discouraged: 
<osm version='0.6' generator='JOSM' upload='false'>

# Upload impossible:
<osm version='0.6' generator='JOSM' upload='never'>

# Download impossible:
<osm version='0.6' generator='JOSM' download='never'>

# Upload and download impossible:
<osm version='0.6' generator='JOSM' upload='never' download='never'>

# Locked: 
<osm version='0.6' generator='JOSM' locked='true'>

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