David,

We switched from Operating System packages and tars to AppImage.  However, the Elive system is kindly offering a Debian package at:

 : http://repository.elivecd.org/pool/multimedia/c/cinelerra-gg/ and just installed manually (dpkg -i )

It is dated 14-Jun-2021.  However, I did not specifically relay to him about adding the Alt/h hotkey documentation and since he had automated the procedure, it is probably not there (which does not affect your usage and you can continue to use the manual however and if you were already doing so).

If you wish to switch to the AppImage, it is extremely easy to use.

1) download   https://cinelerra-gg.org/download/images/CinGG-20210531-x86_64.AppImage

    or               https://cinelerra-gg.org/download/images/CinGG-20210531-x86_64.AppImage-older_distros.AppImage

2) in a window make the file executable:   chmod +x CinGG-20210531-x86_64.AppImage

3) to start up Cinelerra, in a window type in:   {where you put it}/CinGG-20210531-x86_64.AppImage

Meanwhile, I will inform the Elive developer about the Alt/h hotkey.