diff --git a/src/pyflask/manageNeuroconv/manage_neuroconv.py b/src/pyflask/manageNeuroconv/manage_neuroconv.py
index 007491060..7fbe53a53 100644
--- a/src/pyflask/manageNeuroconv/manage_neuroconv.py
+++ b/src/pyflask/manageNeuroconv/manage_neuroconv.py
@@ -920,25 +920,67 @@ def update_conversion_progress(message):
         )
 
         # Assume all interfaces have the same conversion options for now
-        available_options = converter.get_conversion_options_schema()
-        options = {interface: {} for interface in info["source_data"]}
-
-        for interface in options:
-            available_opts = available_options.get("properties").get(interface).get("properties", {})
-
-            # Specify if stub test
-            if run_stub_test:
-                if available_opts.get("stub_test"):
-                    options[interface]["stub_test"] = True
-
-            # Specify if iterator options are available
-            elif available_opts.get("iterator_opts"):
-                options[interface]["iterator_opts"] = dict(
-                    display_progress=True,
-                    progress_bar_class=TQDMProgressSubscriber,
-                    progress_bar_options=progress_bar_options,
+        conversion_options_schema = converter.get_conversion_options_schema()
+        conversion_options = {interface: dict() for interface in info["source_data"]}
+
+        # print(f"{run_stub_test=}")
+        # print("\n")
+        # print(f"{conversion_options_schema=}")
+        # print("\n")
+        # print(f"{conversion_options=}")
+        # print("\n")
+
+        for interface_or_subconverter in conversion_options:
+            conversion_options_schema_per_interface_or_converter = conversion_options_schema.get(
+                "properties", dict()
+            ).get(interface_or_subconverter, dict())
+
+            # Object is a nested converter
+            if conversion_options_schema_per_interface_or_converter.get("title", "") == "Conversion options schema":
+                subconverter = interface_or_subconverter
+
+                conversion_options_schema_per_subinterface = conversion_options_schema_per_interface_or_converter.get(
+                    "properties", dict()
                 )
 
+                for subinterface, subschema in conversion_options_schema_per_subinterface.items():
+                    conversion_options[subconverter][subinterface] = dict()
+                    options_to_update = conversion_options[subconverter][subinterface]
+
+                    properties_per_subinterface = subschema.get("properties", dict())
+
+                    if run_stub_test is True and "stub_test" in properties_per_subinterface:
+                        options_to_update["stub_test"] = True
+
+                    # Only display per-file progress updates if not running a preview
+                    if run_stub_test is False and "iterator_opts" in properties_per_subinterface:
+                        options_to_update["iterator_opts"] = dict(
+                            display_progress=True,
+                            progress_bar_class=TQDMProgressSubscriber,
+                            progress_bar_options=progress_bar_options,
+                        )
+
+            # Object is a standard interface
+            else:
+                interface = interface_or_converter
+
+                conversion_options_schema_per_interface = options_per_interface_or_converter.get("properties", dict())
+                options_to_update = conversion_options[interface]
+
+                if run_stub_test is True and "stub_test" in conversion_options_schema_per_interface:
+                    options_to_update[interface]["stub_test"] = True
+
+                # Only display per-file progress updates if not running a preview
+                if run_stub_test is False and "iterator_opts" in conversion_options_schema_per_interface:
+                    options_to_update[interface]["iterator_opts"] = dict(
+                        display_progress=True,
+                        progress_bar_class=TQDMProgressSubscriber,
+                        progress_bar_options=progress_bar_options,
+                    )
+
+        print(f"{conversion_options=}")
+        print("\n")
+
         # Add GUIDE watermark
         package_json_file_path = resource_path("package.json" if is_packaged() else "../package.json")
         with open(file=package_json_file_path) as fp:
@@ -951,11 +993,12 @@ def update_conversion_progress(message):
             metadata=metadata,
             nwbfile_path=nwbfile_path,
             overwrite=overwrite,
-            conversion_options=options,
+            conversion_options=conversion_options,
             backend=backend,
         )
 
-        if not run_stub_test:
+        # Only set full backend configuration if running a full conversion
+        if run_stub_test is False:
             run_conversion_kwargs.update(dict(backend_configuration=update_backend_configuration(info)))
 
         converter.run_conversion(**run_conversion_kwargs)