diff --git a/README.md b/README.md
index 82851966e06fe025b1836f4d43f1b85e386de06a..5154196e1e4a441d1e96ff28b15d5bb63874dfa9 100644
--- a/README.md
+++ b/README.md
@@ -16,7 +16,7 @@ The latest documentation of this package can be found in our readthedocs site:
 [latest API documentation](http://biobb_common.readthedocs.io/en/latest/).
 
 ### Version
-v3.6.0 2021.2
+v3.7.0 2021.3
 
 ### Copyright & Licensing
 This software has been developed in the [MMB group](http://mmb.irbbarcelona.org) at the [BSC](http://www.bsc.es/) & [IRB](https://www.irbbarcelona.org/) for the [European BioExcel](http://bioexcel.eu/), funded by the European Commission (EU H2020 [823830](http://cordis.europa.eu/projects/823830), EU H2020 [675728](http://cordis.europa.eu/projects/675728)).
diff --git a/biobb_common/docs/source/conf.py b/biobb_common/docs/source/conf.py
index 23ab44db9cc5b7f1193070c2420370d2b9eb65e9..ba7cb776fa1331d695a3b919d60cf24eab867315 100644
--- a/biobb_common/docs/source/conf.py
+++ b/biobb_common/docs/source/conf.py
@@ -67,7 +67,7 @@ master_doc = 'index'
 
 # General information about the project.
 project = u'biobb_common'
-copyright = u'2019, Bioexcel Project'
+copyright = u'2021, Bioexcel Project'
 author = u'Bioexcel Project'
 
 # The version info for the project you're documenting, acts as replacement for
@@ -75,9 +75,9 @@ author = u'Bioexcel Project'
 # built documents.
 #
 # The short X.Y version.
-version = u'2.0.1'
+version = u'3.7.0'
 # The full version, including alpha/beta/rc tags.
-release = u'2.0.1'
+release = u'2021.3'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
diff --git a/biobb_common/docs/source/readme.md b/biobb_common/docs/source/readme.md
index 82851966e06fe025b1836f4d43f1b85e386de06a..5154196e1e4a441d1e96ff28b15d5bb63874dfa9 100644
--- a/biobb_common/docs/source/readme.md
+++ b/biobb_common/docs/source/readme.md
@@ -16,7 +16,7 @@ The latest documentation of this package can be found in our readthedocs site:
 [latest API documentation](http://biobb_common.readthedocs.io/en/latest/).
 
 ### Version
-v3.6.0 2021.2
+v3.7.0 2021.3
 
 ### Copyright & Licensing
 This software has been developed in the [MMB group](http://mmb.irbbarcelona.org) at the [BSC](http://www.bsc.es/) & [IRB](https://www.irbbarcelona.org/) for the [European BioExcel](http://bioexcel.eu/), funded by the European Commission (EU H2020 [823830](http://cordis.europa.eu/projects/823830), EU H2020 [675728](http://cordis.europa.eu/projects/675728)).
diff --git a/biobb_common/docs/source/schema.html b/biobb_common/docs/source/schema.html
index a1c6fde9a015e5b6003d15647d8000f7f598eb5a..d0ee8a81acfecdba028c862d0486795ef8813cdc 100644
--- a/biobb_common/docs/source/schema.html
+++ b/biobb_common/docs/source/schema.html
@@ -10,7 +10,7 @@
   "applicationSubCategory": "http://www.edamontology.org/topic_3892",
   "citation": "https://www.nature.com/articles/s41597-019-0177-4",
   "license": "https://www.apache.org/licenses/LICENSE-2.0",
-  "softwareVersion": "3.6.0",
+  "softwareVersion": "3.7.0",
   "applicationSuite": "BioBB BioExcel Building Blocks",
   "codeRepository": "https://github.com/bioexcel/biobb_common",
   "isAccessibleForFree": "True",
diff --git a/biobb_common/generic/biobb_object.py b/biobb_common/generic/biobb_object.py
index 9a5ed062c7497fe89601f329c4e5d9bb853b915b..274b80ee8240bfa7870360f804346a582c82400b 100644
--- a/biobb_common/generic/biobb_object.py
+++ b/biobb_common/generic/biobb_object.py
@@ -39,7 +39,9 @@ class BiobbObject:
         self.container_working_dir = properties.get('container_working_dir')
         self.container_user_id = properties.get('container_user_id')
         self.container_shell_path = properties.get('container_shell_path', '/bin/bash')
-        self.container_io_dict = { "in": {}, "out": {} }
+
+        # stage
+        self.stage_io_dict = { "in": {}, "out": {} }
 
         # Properties common in all BB
         self.can_write_console_log = properties.get('can_write_console_log', True)
@@ -70,15 +72,15 @@ class BiobbObject:
 
     def check_restart(self) -> bool:
         if self.restart:
-           if fu.check_complete_files(output_file_list):
+           if fu.check_complete_files(self.io_dict["out"].values()):
                fu.log('Restart is enabled, this step: %s will the skipped' % self.step, self.out_log, self.global_log)
                return True
         return False
 
-    def copy_to_container(self):
+    def stage_files(self):
         if self.container_path:
             unique_dir = str(Path(fu.create_unique_dir()).resolve())
-            self.container_io_dict = {"in": {}, "out": {}, "unique_dir": unique_dir}
+            self.stage_io_dict = {"in": {}, "out": {}, "unique_dir": unique_dir}
 
             # IN files COPY and assign INTERNAL PATH
             for file_ref, file_path in self.io_dict["in"].items():
@@ -86,21 +88,21 @@ class BiobbObject:
                     if Path(file_path).exists():
                         shutil.copy2(file_path, unique_dir)
                         fu.log(f'Copy: {file_path} to {unique_dir}', self.out_log)
-                        self.container_io_dict["in"][file_ref] = str(Path(self.container_volume_path).joinpath(Path(file_path).name))
+                        self.stage_io_dict["in"][file_ref] = str(Path(self.container_volume_path).joinpath(Path(file_path).name))
                     else:
                         # Default files in GMXLIB path like gmx_solvate -> input_solvent_gro_path (spc216.gro)
-                        self.container_io_dict["in"][file_ref] = file_path
+                        self.stage_io_dict["in"][file_ref] = file_path
 
             # OUT files assign INTERNAL PATH
             for file_ref, file_path in self.io_dict["out"].items():
                 if file_path:
-                    self.container_io_dict["out"][file_ref] = str(Path(self.container_volume_path).joinpath(Path(file_path).name))
+                    self.stage_io_dict["out"][file_ref] = str(Path(self.container_volume_path).joinpath(Path(file_path).name))
         else:
-            self.container_io_dict = self.io_dict
+            self.stage_io_dict = self.io_dict
 
     def create_cmd_line(self):
         self.container_path = self.container_path or ''
-        host_volume = self.container_io_dict.get("unique_dir")
+        host_volume = self.stage_io_dict.get("unique_dir")
         if self.container_path.endswith('singularity'):
             fu.log('Using Singularity image %s' % self.container_image, self.out_log, self.global_log)
             if not Path(container_image).exists():
@@ -163,7 +165,7 @@ class BiobbObject:
                 pcocc_cmd.append(self.container_user_id)
 
             cmd = ['\\"' + " ".join(self.cmd) + '\\"']
-            pcocc_cmd.extend([container_shell_path, '-c'])
+            pcocc_cmd.extend([self.container_shell_path, '-c'])
             self.cmd = pcocc_cmd + cmd
 
         else:
@@ -177,12 +179,17 @@ class BiobbObject:
             return
 
         # OUT files COPY
-        for file_ref, file_path in self.container_io_dict["out"].items():
+        for file_ref, file_path in self.stage_io_dict["out"].items():
             if file_path:
-                container_file_path = str(Path(self.container_io_dict["unique_dir"]).joinpath(Path(file_path).name))
+                container_file_path = str(Path(self.stage_io_dict["unique_dir"]).joinpath(Path(file_path).name))
                 if Path(container_file_path).exists():
                     shutil.copy2(container_file_path, self.io_dict["out"][file_ref])
 
+
+    def run_biobb(self):
+        self.create_cmd_line()
+        self.execute_command()
+
     def remove_tmp_files(self):
         if self.remove_tmp:
             fu.rm_file_list(self.tmp_files, self.out_log)
diff --git a/biobb_common/json_schemas/biobb_common.json b/biobb_common/json_schemas/biobb_common.json
index 1e7d52c2dab7b8a85061e9211bc9f5fcc03c741c..36505b93274922241bd2f2c0a098a61c70ca26d8 100644
--- a/biobb_common/json_schemas/biobb_common.json
+++ b/biobb_common/json_schemas/biobb_common.json
@@ -6,7 +6,7 @@
     "conda": "https://anaconda.org/bioconda/biobb_common",
     "docker": "https://quay.io/biocontainers/biobb_common",
     "singularity": "https://www.singularity-hub.org/collections/2734/usage",
-    "version": "3.6.0",
+    "version": "3.7.0",
     "tools" : [
         {
             "block" : "",
diff --git a/setup.py b/setup.py
index 2d97b8856f592092ca5f4c2cd1412b1644f40e2e..a18a69ce98d6b8dc7bdeddb44f2e4befae5cb948 100644
--- a/setup.py
+++ b/setup.py
@@ -5,7 +5,7 @@ with open("README.md", "r") as fh:
 
 setuptools.setup(
     name="biobb_common",
-    version="3.6.0",
+    version="3.7.0",
     author="Biobb developers",
     author_email="pau.andrio@bsc.es",
     description="Biobb_common is the base package required to use the biobb packages.",