diff --git a/src/nt_composition/config.py b/src/nt_composition/config.py
index 97f29467185b1638c80bdeda17bf706b4027b83d..8dc88e86ae8954ff51d879f6f0bbc039e10c7f61 100644
--- a/src/nt_composition/config.py
+++ b/src/nt_composition/config.py
@@ -8,11 +8,13 @@ file that will be produced by this module.
 """
 
 from ..db_utils.config import Config
-from typing import List
+from typing import List, Optional
 from ..figures_utils.config_figures import get_good_project
+from ..find_interaction_cluster.config import ConfigGraph
 
 
-def get_weight_folder(weight: int, global_weight: int, ft_type: str):
+def get_weight_folder(weight: int, global_weight: int, ft_type: str,
+                      community_size: Optional[int]):
     """
     Get the weight folder.
 
@@ -22,23 +24,29 @@ def get_weight_folder(weight: int, global_weight: int, ft_type: str):
     by project, else all projet are merge together and the interaction \
     seen in `global_weight` project are taken into account
     :parma ft_type: The type fo featrue of interst
+    :param community_size: The minimum size of communities we want to consider
     :return: The folder that will contains the interaction with a weight \
     greater or equal to `weigh` in ChIA-PET projects
     """
+    if community_size is None:
+        c = ''
+    else:
+        c = f'_community_size_gte_{community_size}'
     if global_weight == 0:
         weight_folder = ConfigNt.density_folder / \
-                        f"{ft_type}_project_weight-{weight}"
+                        f"{ft_type}_project_weight-{weight}{c}"
     else:
         weight_folder = ConfigNt.density_folder / \
                         f"{ft_type}_weight-{weight}_" \
-                        f"global_weight-{global_weight}"
+                        f"global_weight-{global_weight}{c}"
     weight_folder.mkdir(parents=True, exist_ok=True)
     return weight_folder
 
 
 def get_density_file(weight: int, global_weight: int, project: str,
                      ft_type: str, ft: str, fig: bool = False,
-                     kind: str = 'density'):
+                     kind: str = 'density',
+                     community_size: Optional[int] = None):
     """
     Get the filename that will contain the density data or figure.
 
@@ -52,19 +60,22 @@ def get_density_file(weight: int, global_weight: int, project: str,
     :param ft: A feature
     :param fig: Say if the result file is a figure or not
     :param kind: The kind of the figure
+    :param community_size: The minimum size of communities we want to consider
     :return: The filename that will contain the density data or figure.
     """
     if fig:
         ext = "pdf"
     else:
         ext = "txt"
-    res_folder = get_weight_folder(weight, global_weight, ft_type) / project
+    res_folder = get_weight_folder(weight, global_weight, ft_type,
+                                   community_size) / project
     res_folder.mkdir(exist_ok=True, parents=True)
     return res_folder / f"{project}_{ft_type}_{ft}_{kind}.{ext}"
 
 
 def get_density_recap(weight: int, global_weight: int,
-                      ft_type: str, ft: str, fig: bool = False):
+                      ft_type: str, ft: str, fig: bool = False,
+                      community_size: Optional[int] = False):
     """
     Get the density correlation recap file.
 
@@ -76,13 +87,15 @@ def get_density_recap(weight: int, global_weight: int,
     :param ft_type:  A feature type
     :param ft:  A feature
     :param fig: Say if the result file is a figure or not
+    :param community_size: The minimum size of communities we want to consider
     :return:
     """
     if fig:
         ext = "pdf"
     else:
         ext = "txt"
-    outfolder = get_weight_folder(weight, global_weight, ft_type)
+    outfolder = get_weight_folder(weight, global_weight, ft_type,
+                                  community_size)
     outfolder.mkdir(exist_ok=True, parents=True)
     return outfolder / f"{ft_type}_{ft}_density_recap.{ext}"
 
@@ -151,3 +164,4 @@ class ConfigNt:
     get_density_file = get_density_file
     get_features = get_features
     good_projects = get_good_project()
+    get_community_file = ConfigGraph.get_community_file
\ No newline at end of file