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
Multilayer Select (QGIS plugin) Add new selection tools that work across layers. Select by Click Select by Rectangle Select by Polygon (and freehand while the mouse is pressed) Select by Freehand Select by Radius Add/Remove Read more…
QGIS Layers: 1) US Countries Covid-19 Data: https://raw.githubusercontent.com/nytimes/covid-19-data/master/us-counties.csv 2) Boundaries and POPULATION: https://hub.arcgis.com/datasets/esri::usa-counties Source: https://www.communityhealthmaps.org/blog/creating-a-covid-animation-through-time-with-qgis
