QGIS 3 plugin
This tool can be used to lock/unlock selected layers on the project. Using button or shortcut Ctrl-R to lock selected layers and using Ctrl-U to unlock selected layers.
http://plugins.qgis.org/plugins/QLocklayers/
https://github.com/Mariosmsk/QLockLayers
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https://qfield.org/ Install: https://play.google.com/store/apps/details?id=ch.opengis.qfield&hl=el&gl=US Source: https://github.com/opengisch/QField/releases
