'Plugin installation on OpenMCT

I would like to install some new plugins on my OpenMCT version, precisely "Timeline", "Activity" and "Activity Mode", the same as those of the OpenMCT demo (with the martian Rover). I found a git repository with the Timeline plugin and other interesting ones (https://github.com/nasa/MCT-Plugins) but I don't know how to install them...

Does someone know how to do this and could explain it to me please ?

Otherwise, is it possible to access the source code of the demo ?

PS: I have already a plugin named "Timeline" but it displays "TimeStrip" and it is not the same as the one I want.

Thanks, Astrée Deshayes



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