[OSM-newbies] josm and copying from one layer to another

[Morten Kjeldgaard]

On 23/10/2009, at 22.08, swanilli wrote:

> It is not a bug and easily overcome.
>
> In the top right of JOSM you will see a box labeled "Layers". When  
> you create a new layer (I use Ctrl+N), focus shifts to that layer  
> and it appears at the top of the list of layers (say as "Data Layer  
> 2").
>
> Your original layer (usually "Data Layer 1") will be greyed out and  
> everything you add will be on Data Layer 2. To shift focus, select  
> the required layer in the Layers box, click "Activate the Selected  
> Layer" button (just below, in the Layers box) and you will be back  
> into it.

Another nice feature is that you can "Merge down" one layer onto  
another. When mapping areas, for example from imagery, I often do that  
on a New layer where I can quickly outline the shape of the area  
without interfering with what's already on the map. It's then easy to  
"Merge down" to place the newly created area on the downloaded layer.

Cheers,
Morten