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diff --git a/megapixels/app/utils/click_utils.py b/megapixels/app/utils/click_utils.py
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+++ b/megapixels/app/utils/click_utils.py
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+"""
+Custom Click parameter types
+"""
+import click
+
+from app.settings import app_cfg as cfg
+from app.settings import types
+
+
+# --------------------------------------------------------
+# Click command helpers
+# --------------------------------------------------------
+def enum_to_names(enum_type):
+  return {x.name.lower(): x for x in enum_type}
+  
+def show_help(enum_type):
+  names = enum_to_names(enum_type)
+  return 'Options: "{}"'.format(', '.join(list(names.keys())))
+
+def get_default(opt):
+  return opt.name.lower()
+
+
+# --------------------------------------------------------
+# Custom Click parameter class
+# --------------------------------------------------------
+
+
+class ParamVar(click.ParamType):
+
+  name = 'default_type'
+
+  def __init__(self, param_type):
+    # self.name = '{}'.format(param_type.name.lower())
+    # sealf.
+    self.ops =  {x.name.lower(): x for x in param_type}
+  
+  def convert(self, value, param, ctx):
+    """converts (str) repr to Enum hash"""
+    try:
+      return self.ops[value.lower()]
+    except:
+      self.fail('{} is not a valid option'.format(value, param, ctx))
+
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