I filed this question as "feature request" since I'm pretty sure this functionality doesn't exist yet (I've been looking for it for years :) ).
Layout algorithms are very powerful and many of them come with lots of options. Sometimes, getting the wanted results requires to spend quite a lot of time fine-tuning the layout algorithm options.
However, when working on a different diagram, if I use the same layout algorithm but with other options because I want a different render, the options used for the previous diagram are lost.
Would it be possible to save custom presets layout algorithm options in some way ?
They might be saved within the diagram file so that next time we call the layout algorithm window, the options are set on its last use in this file.
And/or we could save the current settings in such a way that I can call them back later, even in a different diagram file.