diff --git a/scripts/buld.py b/scripts/buld.py
index 875940d..e6c23f5 100644
--- a/scripts/buld.py
+++ b/scripts/buld.py
@@ -17,12 +17,18 @@ import instruments
 # print("projects to build:")
 # print(projects_to_build)
 
-sln_config = "Debug|iPhone Simulator"
-sln_dir = os.path.dirname(settings.sln_path)
+cmd_args = {'version' : '1.2.3', 'some_field' : 'some_value'}
+# sln_dir = os.path.dirname(settings.sln_path)
+
+# instruments.CreateOrRestoreFromBackup(sln_dir, settings.files_for_backup)
+# instruments.RemoveProjectFromSolution(settings.sln_path, settings.projects_to_exclude)
+# instruments.CleanSolution(settings.mdtool, settings.sln_path)
+# instruments.BuildSolution(settings.mdtool, settings.sln_path, sln_config)
+
+instruments.CompileConfigs(settings.build_ready_configs, cmd_args)
+
+for conf in settings.build_ready_configs:
+	print conf
 
-instruments.CreateOrRestoreFromBackup(sln_dir, settings.files_for_backup)
-instruments.RemoveProjectFromSolution(settings.sln_path, settings.projects_to_exclude)
-instruments.CleanSolution(settings.mdtool, settings.sln_path)
-instruments.BuildSolution(settings.mdtool, settings.sln_path, sln_config)
 
 # instruments.DeleteBackups(sln_dir, settings.files_for_backup)
\ No newline at end of file
diff --git a/scripts/instruments.py b/scripts/instruments.py
index ac977f0..551fab9 100644
--- a/scripts/instruments.py
+++ b/scripts/instruments.py
@@ -62,6 +62,7 @@ def RemoveProjectFromSolution(abs_path_to_sln, project_names):
 		reg_pattern = r'\n*Project.*?"{0}".*?\n*EndProject'.format(pn)
 		content = re.sub(reg_pattern, "", content)
 
+	# override file
 	sln_file.seek(0)
 	sln_file.write(content)
 	sln_file.truncate()
@@ -84,3 +85,29 @@ def BuildSolution(mdtool, abs_path_to_sln, config):
 	print(build_cmd_text)
 	ret_code = call(build_cmd_text, shell=True)
 	print('finished with return code: {0}'.format(ret_code))
+
+def CompileConfigs(configs_lst, cmd_args):
+
+	for c_dict in configs_lst:
+
+		ancestors = GetAncestorsFromRootTo(c_dict)
+		ancestors.append(cmd_args)
+
+		union_config = {}
+		for a in ancestors:
+			union_config.update(a)
+
+		c_dict.clear()
+		c_dict.update(union_config)
+
+def GetAncestorsFromRootTo(config):
+
+	ancestors = []
+	c = config
+
+	while c is not None:
+		ancestors.append(c)
+		c = c['parent']
+
+	ancestors.reverse()
+	return ancestors
\ No newline at end of file
diff --git a/scripts/patch.py b/scripts/patch.py
new file mode 100644
index 0000000..49ab8c7
--- /dev/null
+++ b/scripts/patch.py
@@ -0,0 +1,6 @@
+def PathcIos(build_config):
+	print('start patch ios')
+
+
+def PathcAndroid(build_config):
+	print('start patch ios')
\ No newline at end of file
diff --git a/scripts/settings.py b/scripts/settings.py
index f9207aa..41021cd 100644
--- a/scripts/settings.py
+++ b/scripts/settings.py
@@ -1,4 +1,35 @@
-mdtool = "/Applications/Xamarin\ Studio.app/Contents/MacOS/mdtool"
-sln_path = "/Users/rzaitov/Documents/Apps/BuildScript/BuildSample/BuildSample.sln"
-files_for_backup = ["BuildSample.sln", "BuildSample/CoolApp.csproj"]
-projects_to_exclude = ["NotCompileApp"]
\ No newline at end of file
+import patch
+
+build_root = {
+	'mdtool' : '/Applications/Xamarin\ Studio.app/Contents/MacOS/mdtool',
+	'version' : '0.0.0',
+	'parent' : None
+}
+
+ios_root = {
+	'sln_path' : '/Users/rzaitov/Documents/Apps/BuildScript/BuildSample/BuildSample.sln',
+	'parent' : build_root
+}
+
+ios_development_root = {
+	'files_for_backup' : ['BuildSample.sln', 'BuildSample/CoolApp.csproj'],
+	'projects_to_exclude' : ['NotCompileApp'],
+	'parent' : ios_root
+}
+
+ios_development_production = {
+	'name' : 'ios_development_production',
+	'sln_config' : 'Release|iPhone',
+	'patch' : patch.PathcIos,
+	'parent' : ios_development_root
+}
+
+ios_development_staging = {
+	'name' : 'ios_development_staging',
+	'sln_config' : 'Debug|iPhone',
+	'patch' : patch.PathcIos,
+	'parent' : ios_development_root
+}
+
+build_ready_configs = [ios_development_production, ios_development_staging]
+