diff --git a/reg_tests/CTestList.cmake b/reg_tests/CTestList.cmake
index 2af9b9ee12..0bea1964e7 100644
--- a/reg_tests/CTestList.cmake
+++ b/reg_tests/CTestList.cmake
@@ -358,6 +358,10 @@ hd_regression("hd_5MW_OC3Spar_DLL_WTurb_WavesIrr"           "hydrodyn;offshore")
 hd_regression("hd_5MW_OC4Semi_WSt_WavesWN"                  "hydrodyn;offshore")
 hd_regression("hd_5MW_TLP_DLL_WTurb_WavesIrr_WavesMulti"    "hydrodyn;offshore")
 hd_regression("hd_TaperCylinderPitchMoment"                 "hydrodyn;offshore")
+hd_regression("hd_NBodyMod1"                                "hydrodyn;offshore")
+hd_regression("hd_NBodyMod2"                                "hydrodyn;offshore")
+hd_regression("hd_NBodyMod3"                                "hydrodyn;offshore")
+
 
 # Py-HydroDyn regression tests
 py_hd_regression("py_hd_5MW_OC4Semi_WSt_WavesWN"            "hydrodyn;offshore;python")
diff --git a/reg_tests/executeHydrodynRegressionCase.py b/reg_tests/executeHydrodynRegressionCase.py
index ae67452dbc..445c21294b 100644
--- a/reg_tests/executeHydrodynRegressionCase.py
+++ b/reg_tests/executeHydrodynRegressionCase.py
@@ -37,7 +37,7 @@
 from errorPlotting import exportCaseSummary
 
 ##### Main program
-excludeExt=['.out','.outb','.ech','.yaml','.sum','.log']
+excludeExt=['.out','.outb','.ech','.yaml','.sum','.log','.rst']
 
 ### Store the python executable for future python calls
 pythonCommand = sys.executable
@@ -92,13 +92,7 @@
 # create the local output directory if it does not already exist
 # and initialize it with input files for all test cases
 if not os.path.isdir(testBuildDirectory):
-    os.makedirs(testBuildDirectory)
-    for file in glob.glob(os.path.join(inputsDirectory,"hd_*inp")):
-        filename = file.split(os.path.sep)[-1]
-        shutil.copy(os.path.join(inputsDirectory,filename), os.path.join(testBuildDirectory,filename))
-    for file in glob.glob(os.path.join(inputsDirectory,"*dat")):
-        filename = file.split(os.path.sep)[-1]
-        shutil.copy(os.path.join(inputsDirectory,filename), os.path.join(testBuildDirectory,filename))
+    rtl.copyTree(inputsDirectory, testBuildDirectory, excludeExt=excludeExt)
 
 dirToCopy = os.path.join("glue-codes","openfast","5MW_Baseline","HydroData")
 buildDirectoryGlue = os.path.join(buildDirectory,os.pardir,os.pardir,dirToCopy)
diff --git a/reg_tests/r-test b/reg_tests/r-test
index fbe81eddbd..f19127ebd2 160000
--- a/reg_tests/r-test
+++ b/reg_tests/r-test
@@ -1 +1 @@
-Subproject commit fbe81eddbdaa51545f9a83842ebf693e7d655852
+Subproject commit f19127ebd2f82cc4f2c08ce40553d58d20050822