add env variable and prefs for tech passes split, and allow customization ofr tech passes split in popup

fn.py

@@ -7,6 +7,9 @@ from .constant import TECH_PASS_KEYWORDS
 from pathlib import Path
 
 
+def get_addon_prefs():
+    return bpy.context.preferences.addons[__package__].preferences
+
 # region Manage nodes
 
 def real_loc(n):
@@ -208,7 +211,7 @@ def create_and_connect_file_output(node, outputs, file_out, out_name, base_path,
 
 
 def connect_to_file_output(node_list, file_out=None, base_path='', excludes=None, remap_names=None, 
-                           file_format=None, split_tech_passes=False, tech_file_format=None, template=None):
+                           file_format=None, tech_pass_names=None, tech_file_format=None, template=None):
     """Connect selected nodes output to file output(s)
     if a file output is selected, add intputs on it
 
@@ -230,8 +233,12 @@ def connect_to_file_output(node_list, file_out=None, base_path='', excludes=None
 
         remap_names (dict, optionnal): List of output names to remap {node_name: {output_name: new_name}}.
             
-        split_tech_passes (bool, optional): When True, create a separate file output for technical passes
-            Defaults to False.
+        tech_pass_names (list[str], optional): list of of socket names to set as separate file output for technical passes
+            Defaults to None
+        
+        tech_file_format (dict, optionnal): converts each dictionary key into a file output format for tech passes
+            if not passed, will use file_format.
+            Defaults to None.
 
     Returns:
         list[bpy.types.CompositorNode]: All nodes created.
@@ -278,9 +285,9 @@ def connect_to_file_output(node_list, file_out=None, base_path='', excludes=None
         # Categorize outputs
         crypto_outputs = [o for o in all_outputs if 'crypto' in o.name.lower()]
         
-        if split_tech_passes:
+        if tech_pass_names:
             # Filter tech passes
-            tech_outputs = [o for o in all_outputs if o.name.lower() in TECH_PASS_KEYWORDS] # any(keyword in o.name.lower() for keyword in TECH_PASS_KEYWORDS)]
+            tech_outputs = [o for o in all_outputs if o.name.lower() in tech_pass_names] # TECH_PASS_KEYWORDS
             # Regular outputs (excluding crypto and tech passes)
             regular_outputs = [o for o in all_outputs if o not in crypto_outputs and o not in tech_outputs]
         else: