Save as 'Earlier_Version' as default - how?

[paul.millet]

hello, look for eneroth legacy save plugin

Eneroth Legacy Save

*Summer of 69 playing in the background* My, you guessed it, 69th extension is now live in the Extension Warehouse. This extension lets you quickly save your model to an older format, without having to go through accepting the location, setting the version and confirm replacing the existing file each time. The extension can be useful if you work with people stuck in an older version, or if you want ypur models to be accessible by hobbyist using SketchUp Make. https://extensions.sketchup.com/e…

it is available in the extension warehouse.

you can then reassign the ctrl+save (on windows) shortcut to the save in legacy format