diff --git a/qcpanel/run.py b/qcpanel/run.py
index bb94a70..fdaf2b0 100644
--- a/qcpanel/run.py
+++ b/qcpanel/run.py
@@ -13,12 +13,13 @@ def app_instance():
     param_init = {
         k: v
         for k, v in pn.state.location.query_params.items()
-        if k in ["dataset", "metric", "plot_view", "mode", "estimators"]
+        if k in ["root", "dataset", "metric", "plot_view", "mode", "estimators"]
     }
     qtv = QuaccTestViewer(param_init=param_init)
     pn.state.location.sync(
         qtv,
         {
+            "root": "root",
             "dataset": "dataset",
             "metric": "metric",
             "plot_view": "plot_view",
diff --git a/qcpanel/viewer.py b/qcpanel/viewer.py
index b298151..596ff48 100644
--- a/qcpanel/viewer.py
+++ b/qcpanel/viewer.py
@@ -12,6 +12,8 @@ from quacc.evaluation.report import DatasetReport
 
 
 class QuaccTestViewer(param.Parameterized):
+    __base_path = "output"
+
     dataset = param.Selector()
     metric = param.Selector()
     estimators = param.ListSelector()
@@ -31,6 +33,8 @@ class QuaccTestViewer(param.Parameterized):
     plot_pane = param.Parameter()
     modal_pane = param.Parameter()
 
+    root = param.String()
+
     def __init__(self, param_init=None, **params):
         super().__init__(**params)
 
@@ -234,12 +238,14 @@ class QuaccTestViewer(param.Parameterized):
         )
 
     def update_datasets(self):
-        __base_path = "output"
+        if not self.__get_param_init("root"):
+            self.root = self.__base_path
+
         dataset_paths = sorted(
-            explore_datasets(__base_path), key=lambda t: (-len(t.parts), t)
+            explore_datasets(self.root), key=lambda t: (-len(t.parts), t)
         )
         self.datasets_ = {
-            str(dp.parent.relative_to(Path(__base_path))): DatasetReport.unpickle(dp)
+            str(dp.parent.relative_to(Path(self.root))): DatasetReport.unpickle(dp)
             for dp in dataset_paths
         }