Tool Setup: FNIS
Vortex supports Fore's New Idles in Skyrim (FNIS) natively. You simply need to install the FNIS Mod in order to use it.
What is an "FNIS"?
Fore's New Idles in Skyrim (FNIS) is a utility for both Skyrim and Skyrim Special Edition which allows other mods to insert animations into the game. It can be used both to add new animations and replace existing ones.
Where to get FNIS
You can get FNIS from Nexus Mods. Ensure you download the correct version for your game:
Install with Vortex
FNIS can be installed into Vortex like any other mod. Download the main file with the "Mod Manager Download" button, then install and enabled in inside Vortex. Repeat this process with FNIS Creatures and FNIS Spells (if required).
With the required mods installed and deployed, head to the dashboard and click the refresh button on the Starter dashlet. If FNIS is installed properly the tool icon will light up.
How to use FNIS in Vortex
To change your FNIS generation options there is a button on the toolbar of the Mods section named "Configure FNIS". This will present you with all the checkboxes that are normally found in the FNIS application. You may need to consult the download page of your animation mods to understand which of these options apply to you.
By default FNIS data will not be updated, so you will need to enable this feature under the interface tab in settings. The option is called "Run FNIS on Deployment Event". Once that is turned on, go back to the Mods section and deploy your files.
The deployment notification will show "Updating FNIS" after your files get deployed.
Once the process completes, you will notice a new mod called "FNIS Data", this contains all the file created by FNIS during deployment. It is updated automatically each time you deploy your mods.