Saving File Sets
This requires a Floating window. (It may also work with the Custom workspace.)
Creating the Template
Use a Floating window to create a set of script files.
Enter Layout mode.
Create a tab to hold a file-set.
Quit and Reopen HISE (to save your layout).
Creating a File Set
Within the file-set tab, create the tabs for your script files, and load them in. (Or, create a new file-set tab.)
Add tabs for each script file, and load the files in.
Right-click on the file-set tab, and choose "Export Tab as JSON".
Paste the text into a text editor (not in HISE), and save the file.
When you reopen HISE, your script files will be loaded. But when you open your project, the script file tabs are reset. No problem — you can restore the file-set.
Restoring a File Set
Open the text editor file for the file set you want to load.
Copy the JSON data.
Right-click on a file-set tab, and choose "Replace Tab with JSON in Clipboard".