diff --git a/tools/scp.py b/tools/scp.py
index 063be43..d22d025 100644
--- a/tools/scp.py
+++ b/tools/scp.py
@@ -1,11 +1,12 @@
 import os
 import re
 import sys
+import argparse
 
 #
 #    [ TD2 SCENERY PROCESSOR ]
 #    by masuo
-#    v1.8
+#    v1.9
 #
 
 BAD_WORDS = ['Fence', 'TerrainPoint', 'Wires']
@@ -15,54 +16,126 @@ def should_exclude(line: str) -> bool:
     for word in BAD_WORDS:
         if line.startswith(word):
             return True
-
     if line.startswith("Misc"):
         if not re.match(MISC_REGEX, line):
             return True
-
     return False
 
-def process_file(file_path: str):
+def filter_lines(lines):
+    output = []
+    i = 0
+    n = len(lines)
+    while i < n:
+        line = lines[i]
+        if line.startswith("MiscGroup"):
+            group_start = line
+            i += 1
+            content_kept = []
+            has_content = False
+            while i < n:
+                current = lines[i]
+                if current.strip() == "EndMiscGroup":
+                    end_line = current
+                    i += 1
+                    break
+                if not should_exclude(current):
+                    content_kept.append(current)
+                    has_content = True
+                i += 1
+            else:
+                # EndMiscGroup not found, output start and any kept lines
+                if has_content:
+                    output.append(group_start)
+                    output.extend(content_kept)
+                continue
+            if has_content:
+                output.append(group_start)
+                output.extend(content_kept)
+                output.append(end_line)
+        else:
+            if not should_exclude(line):
+                output.append(line)
+            i += 1
+    return output
+
+def process_file(file_path: str, output_dir=None, allow_reprocess=False):
     if not file_path.endswith(".sc"):
         print(f"Skipping non-.sc file: {file_path}")
         return
 
-    if file_path.endswith(".lite.sc"):
+    if file_path.endswith(".lite.sc") and not allow_reprocess:
         print(f"Skipping already processed file: {file_path}")
         return
 
-    output_path = file_path[:-3] + ".lite.sc"
+    base = os.path.basename(file_path)
+    if output_dir:
+        if file_path.endswith(".lite.sc") and allow_reprocess:
+            out_name = base
+        else:
+            out_name = base[:-3] + ".lite.sc" if base.endswith(".sc") else base + ".lite.sc"
+        output_path = os.path.join(output_dir, out_name)
+    else:
+        if file_path.endswith(".lite.sc") and allow_reprocess:
+            output_path = file_path
+        else:
+            output_path = file_path[:-3] + ".lite.sc"
+
     print(f"Processing file: {file_path} -> {output_path}")
 
     try:
-        with open(file_path, encoding="utf8") as infile, open(output_path, 'w', encoding="utf8") as outfile:
-            for line in infile:
-                if not should_exclude(line):
-                    outfile.write(line)
+        with open(file_path, encoding="utf8") as infile:
+            lines = infile.readlines()
+        filtered = filter_lines(lines)
+        with open(output_path, 'w', encoding="utf8") as outfile:
+            outfile.writelines(filtered)
     except Exception as e:
         print(f"Error processing {file_path}: {e}")
 
-def process_directory(directory: str):
+def process_directory(directory: str, allow_reprocess=False):
     print(f"Processing directory: {directory}")
     for entry in os.listdir(directory):
         full_path = os.path.join(directory, entry)
         if os.path.isfile(full_path):
-            process_file(full_path)
+            process_file(full_path, allow_reprocess=allow_reprocess)
 
 def main():
-    if len(sys.argv) < 2:
-        print("Usage: python scp.py <file_or_directory> [<file_or_directory> ...]")
-        return
+    parser = argparse.ArgumentParser(description="TD2 SCENERY PROCESSOR")
+    parser.add_argument('input', help='Input directory')
+    parser.add_argument('output', help='Output directory')
+    parser.add_argument('-f', '--force', action='store_true',
+                        help='Force overwrite without confirmation if output directory is not empty')
+    parser.add_argument('--allow-reprocess', action='store_true',
+                        help='Allow reprocessing .lite.sc files without adding extra .lite')
+    args = parser.parse_args()
 
-    for path in sys.argv[1:]:
-        if os.path.isdir(path):
-            process_directory(path)
-        elif os.path.isfile(path):
-            process_file(path)
-        else:
-            print(f"Invalid path: {path}")
-
-    print("Done!")
+    if args.input and args.output:
+        if not os.path.isdir(args.input):
+            print(f"Input directory does not exist: {args.input}")
+            sys.exit(1)
+        output_dir = args.output
+        if os.path.isdir(output_dir) and os.listdir(output_dir):
+            if not args.force:
+                resp = input(f"Output directory '{output_dir}' is not empty. Overwrite? (y/N): ").strip().lower()
+                if resp != 'y':
+                    print("Aborted.")
+                    sys.exit(0)
+        os.makedirs(output_dir, exist_ok=True)
+        for entry in os.listdir(args.input):
+            full_path = os.path.join(args.input, entry)
+            if os.path.isfile(full_path):
+                process_file(full_path, output_dir=output_dir, allow_reprocess=args.allow_reprocess)
+        print("Done!")
+    elif args.paths:
+        for path in args.paths:
+            if os.path.isdir(path):
+                process_directory(path, allow_reprocess=args.allow_reprocess)
+            elif os.path.isfile(path):
+                process_file(path, allow_reprocess=args.allow_reprocess)
+            else:
+                print(f"Invalid path: {path}")
+        print("Done!")
+    else:
+        parser.print_help()
 
 if __name__ == "__main__":
     main()