1 files changed, 9 insertions, 1 deletions
diff --git a/fg21sim/extragalactic/clusters/formation.py b/fg21sim/extragalactic/clusters/formation.py
index dc39b62..83e145f 100644
--- a/fg21sim/extragalactic/clusters/formation.py
+++ b/fg21sim/extragalactic/clusters/formation.py
@@ -23,7 +23,7 @@ import scipy.integrate
 import scipy.special
 import scipy.optimize
 
-from .mergertree import MergerTree, get_history
+from .mergertree import MergerTree, get_history, show_mtree
 from ...share import COSMO
 
 
@@ -278,6 +278,14 @@ class ClusterFormation:
         """
         return self.history(mtree=mtree, merger_only=True)
 
+    def show(self, mtree=None):
+        """
+        Print the formation history nicely.
+        """
+        if mtree is None:
+            mtree = self.mtree
+        show_mtree(mtree)
+
     def _trace_main(self):
         """
         Iteratively trace the merger and accretion events of the main