diff --git a/README.md b/README.md
index 47301c0..e4330d2 100644
--- a/README.md
+++ b/README.md
@@ -3,16 +3,29 @@
 
 Cleantoots helps you delete your old toots. Because not everything we say on social medias should stay there for eternity.
 
-## Initial config
-
+## Config
+### Initial setup
 Only once
 
 ```bash
 python -m pip install cleantoots
-cleantoots setup-config  # See the following section for config options
-cleantoots login
+cleantoots config setup  # See the following section for config file options
+cleantoots config login
 ```
 
+### View and edit
+You can later view the parsed config file with
+```bash
+cleantoots config list
+```
+
+You can edit the config file using 
+```bash
+cleantoots config edit
+```
+
+This will open the config file using your preferred editor (`EDITOR` env variable).
+
 ## Config options
 
 ```ini
@@ -68,6 +81,14 @@ cleantoots clean  # Defaults to a dry run. Does NOT delete.
 cleantoots clean --delete  # Delete without prompt.
 ```
 
+## Add an account
+```bash
+cleantoots config edit  # Opens editor so you can add your config
+cleantoots config list  # Check your newly added account
+cleantoots config login --only-missing  # Store credentials for your newly created account
+cleantoots clean --delete
+```
+
 ## Tested environments
 Cleantoots test suite runs on Python 3.6, 3.7 and 3.8
 on latest versions of macOS, Windows and Ubuntu as GitHub Actions understands it.
diff --git a/cleantoots/config.py b/cleantoots/config.py
index 8384bb4..0fed664 100644
--- a/cleantoots/config.py
+++ b/cleantoots/config.py
@@ -77,19 +77,33 @@ def edit(config):
 
 
 @config_command.command()
+@click.option(
+    "-m",
+    "--only-missing",
+    help="Prompt for login only on accounts that miss a credentials file.",
+    is_flag=True,
+)
 @click.pass_obj
-def login(config):
+def login(config, only_missing):
     """Fetch credentials for each app described in config file."""
     if not _config_has_sections(config):
         return
     for section in config.sections():
         section = config[section]
-        Mastodon.create_app(
-            "cleantoots",
-            api_base_url=section.get("api_base_url"),
-            to_file=config.file(section.get("app_secret_file")),
-        )
+        app_file_exists = config.isfile(section.get("app_secret_file"))
+        user_file_exists = config.isfile(section.get("user_secret_file"))
+
+        if not (only_missing and app_file_exists):
+            Mastodon.create_app(
+                "cleantoots",
+                api_base_url=section.get("api_base_url"),
+                to_file=config.file(section.get("app_secret_file")),
+            )
+
         mastodon = Mastodon(client_id=config.file(section.get("app_secret_file")))
-        _open_url(mastodon.auth_request_url())
-        code = click.prompt("Enter code for {}".format(section.get("api_base_url")))
-        mastodon.log_in(code=code, to_file=config.file(section.get("user_secret_file")))
+        if not (only_missing and user_file_exists and app_file_exists):
+            _open_url(mastodon.auth_request_url())
+            code = click.prompt("Enter code for {}".format(section.get("api_base_url")))
+            mastodon.log_in(
+                code=code, to_file=config.file(section.get("user_secret_file"))
+            )
diff --git a/cleantoots/main.py b/cleantoots/main.py
index 74959b7..0e5259e 100644
--- a/cleantoots/main.py
+++ b/cleantoots/main.py
@@ -25,6 +25,9 @@ class CleanTootsConfig(configparser.ConfigParser):
     def file(self, filename):
         return os.path.join(self.dir, filename)
 
+    def isfile(self, filename):
+        return os.path.isfile(self.file(filename))
+
 
 @click.group(context_settings=CONTEXT_SETTINGS)
 @click.option(
diff --git a/pyproject.toml b/pyproject.toml
index 05d74eb..50cdec7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "cleantoots"
-version = "0.3.1"
+version = "0.3.2"
 description = "Cleanup your toot history."
 license = "GPL-3.0-or-later"
 authors = ["Gabriel Augendre <gabriel@augendre.info>"]