Hi,
See the last example at
https://docs.qgis.org/testing/en/docs/user_manual/print_composer/composer_items/composer_label.html#exploring-expressions-in-a-label-item
to create a list of used layers in a 'map 1' map item.

Hope that helps,

Harrissou

Le lun. 8 juil. 2019 à 16:31, magerlin <[email protected]> a écrit :

> I am going to reuse an old project file with 20 layouts which each are
> different based on what layers are locked in the layout.
>
> But now the background map source is going to be changed so I have to
> unlock
> layers in all 20 layouts to make them show the new background map.
>
> But then I will loose the information on what layers should be locked (ie.
> included) in each layout.
>
> Anywhere I can see what layers are included/locked in each layout?
>
> Final solution may be to open the project file in an XML editor - it must
> be
> stored there somewhere
>
> I should probably have used "map themes" but it is to late now......
>
>
>
> -----
> Regards Morten
>
> Currently using Qgis 2.18.23 (OSGeo4) and Qgis 3.4.2 in parallel
> Windows 7, 64bit
> --
> Sent from:
> http://osgeo-org.1560.x6.nabble.com/QGIS-Developer-f4099106.html
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