+2021 May New Features of note:
+ Context Help has been added using hotkey Alt/h by Georgy. The
+ help page will come up in your web browser tab for the item
+ most relevant to where you used Alt/h on a menu, plugin, button,
+ icon, transition, window, or tooltip. For additional information:
+ /https://cinelerra-gg.org/download/CinelerraGG_Manual/Troubleshooting_Help.html
+.