diff --git a/director.py b/director.py
index f2a599b..c62f654 100644
--- a/director.py
+++ b/director.py
@@ -13,12 +13,12 @@ class Director:
         self.doc = doc = curdoc()
         doc.title = choice("👺👹") + " kabuki"
 
-        self.ti_add_pv = ti_add_pv = TextInput(value="", title="Add PV:")
-        ti_add_pv.on_change("value", self.on_add_pv)
+        self.ti_add_pvs = ti_add_pvs = TextInput(value="", title="Add PV:")
+        ti_add_pvs.on_change("value", self.on_add_pvs)
 
         self.plot_container = plot_container = column()
-        layout = column(ti_add_pv, plot_container)
-        doc.add_root(layout)
+        root_container = column(ti_add_pvs, plot_container)
+        doc.add_root(root_container)
 
         self.updates = []
         self.doc.add_periodic_callback(self.periodic_update, 1000)
@@ -29,49 +29,47 @@ class Director:
             func()
 
 
-    def on_add_pv(self, attr, old, new):
+    def on_add_pvs(self, attr, old, new):
         if not new: return
-        self.ti_add_pv.value = ""
+        self.ti_add_pvs.value = ""
         print(f"CB Add PV: attribute \"{attr}\" changed from \"{old}\" to \"{new}\"")
-        new = break_apart(new)
-        print(assemble(new))
-        self.add_pvs(new)
+        grid = break_apart(new)
+        print(normalized_string(grid))
+        self.add_pvs(grid)
 
 
-    def add_pvs(self, pvnames):
-        for line in reversed(pvnames):
-            figs_row = self.make_pvs_row(reversed(line))
-            self.plot_container.children.insert(0, figs_row)
+    def add_pvs(self, pvnames_grid):
+        for pvnames in reversed(pvnames_grid):
+            pvs_row = self.make_pvs_row(pvnames)
+            self.plot_container.children.insert(0, pvs_row)
 
 
     def make_pvs_row(self, pvnames):
-        figs_row = row()
+        container = row()
         for n in pvnames:
             print("Add PV:", n)
             try:
-                a = Actor(figs_row, n)
+                a = Actor(container, n)
             except Exception as e:
-                print("caught:", type(e), e)
+                tn = type(e).__name__
+                print(f"failed due to: {tn}: {e}")
             else:
                 def make_remover(x): #TODO: fix this
-                    return lambda: self.remove_plot(x)
+                    return lambda: self.remove_actor(x)
                 a.plt.on_click_close(make_remover(a))
-                self.add_plot(a)
-        return figs_row
+                self.add_actor(a)
+        return container
 
 
-    def add_plot(self, a):
+    def add_actor(self, a):
         print("Add plot:", a)
-        fig = a.plt.fig
-#        a.container.children.append(fig)
-        a.container.children.insert(0, fig)
+        a.container.children.append(a.plt.fig)
         self.updates.append(a.update)
 
 
-    def remove_plot(self, a):
+    def remove_actor(self, a):
         print("Remove plot:", a)
-        fig = a.plt.fig
-        a.container.children.remove(fig) #TODO: remove container if emptied?
+        a.container.children.remove(a.plt.fig) #TODO: remove container if emptied?
         self.updates.remove(a.update)
 
 
@@ -89,10 +87,8 @@ def break_apart(s):
     res = [i.split() for i in lines]
     return res
 
-def assemble(lst):
-    return "; ".join(", ".join(line) for line in lst)
-
-
+def normalized_string(grid):
+    return "; ".join(", ".join(names) for names in grid)