diff --git a/tailbone/grids/core.py b/tailbone/grids/core.py
index 3a17493f..5cb8f8d2 100644
--- a/tailbone/grids/core.py
+++ b/tailbone/grids/core.py
@@ -128,12 +128,19 @@ class Grid(object):
         if key in self.columns:
             self.columns.remove(key)
 
+    def append(self, field):
+        self.columns.append(field)
+
     def insert_before(self, field, newfield):
         self.columns.insert_before(field, newfield)
 
     def insert_after(self, field, newfield):
         self.columns.insert_after(field, newfield)
 
+    def replace(self, oldfield, newfield):
+        self.insert_after(oldfield, newfield)
+        self.hide_column(oldfield)
+
     def set_joiner(self, key, joiner):
         if joiner is None:
             self.joiners.pop(key, None)