How can I add custom paths to Fusion
Even if I add them, this gets reset to the defaults in the screenshot when I relaunch.
AYON allows you to define environment variables on different levels in application addon.
Does this help? Are you looking for something specific for Fusion?
This to do with the fact that we specify “master prefs” for Fusion which define default settings.
Currently these live in the codebase.
However, this pending PR makes it so that you can stack your own master prefs on top to add customizations to it: Make AYON Fusion MasterPrefs customizable and stackable with existing prefs + allow empty fusion profile dir by BigRoy · Pull Request #44 · ynput/ayon-fusion · GitHub
Master Prefs in Fusion are somewhat finnicky - but if you use them right they can be quite powerful as I’ve seen some studios done some crazy stacking that worked well for them.
Thank you @mustafa_jafar and @BigRoy
Yes I did try first to set the FUSION_MasterPrefs envar in the Fusion Applications section, but this didnt work. I resulted to edit the fusion_shared.pref file inside the addon folder and it worked… knowing this is not a sustainable soulution.
Looking forward for the PR to come through. Cheers!
If you can, feel free to test the PR and confirm it works for your use case - it may allow us to take it through reviews in a quicker manner.


