diff --git a/src/bcr_api/bwproject.py b/src/bcr_api/bwproject.py
old mode 100644
new mode 100755
index 6344999..332f145
--- a/src/bcr_api/bwproject.py
+++ b/src/bcr_api/bwproject.py
@@ -38,6 +38,7 @@ def __init__(
         grant_type="api-password",
         client_id="brandwatch-api-client",
         apiurl="https://api.brandwatch.com/",
+        secondary_user=None
     ):
         """
         Creates a BWUser object.
@@ -51,22 +52,39 @@ def __init__(
         self.apiurl = apiurl
         self.oauthpath = "oauth/token"
         self.credentials_store = CredentialsStore(credentials_path=token_path)
-        if token:
-            self.username, self.token = self._test_auth(username, token)
-            self.credentials_store[self.username] = self.token
-        elif username is not None and password is not None:
-            self.username, self.token = self._get_auth(
-                username, password, token_path, grant_type, client_id
-            )
-            if token_path is not None:
-                self.credentials_store[self.username] = self.token
-        elif username is not None:
-            self.username = username
-            self.token = self.credentials_store[username]
+        
+        if secondary_user:
+            grant_type="application-become"
+            client_id="brandwatch-application-client"
+            self.username, self.token = self._get_auth(username, password, token_path, "password", client_id)
+            url = ("https://api.brandwatch.com/oauth/token?access_token={0}"\
+                "&username={1}"\
+                "&grant_type={2}"\
+                "&client_id={3}"
+                ).format(self.token, secondary_user, grant_type, client_id)
+            r = requests.post(url)
+
+            if "access_token" in r.json():
+                self.token = r.json()["access_token"]
+                self._test_auth(secondary_user, self.token)
+            else:
+                raise KeyError("Failed to become %s" % secondary_user)
         else:
-            raise KeyError(
-                "Must provide valid token, username and password, or username and path to token file"
-            )
+            if token:
+                self.username, self.token = self._test_auth(username, token)
+                self.credentials_store[self.username] = self.token
+            elif username is not None and password is not None:
+                self.username, self.token = self._get_auth(
+                    username, password, token_path, grant_type, client_id)
+                if token_path is not None:
+                    self.credentials_store[self.username] = self.token
+            elif username is not None:
+                self.username = username
+                self.token = self.credentials_store[username]
+            else:
+                raise KeyError(
+                    "Must provide valid token, username and password, or username and path to token file"
+                )
 
     def _test_auth(self, username, token):
 
@@ -120,19 +138,19 @@ def validate_query_search(self, **kwargs):
         Checks a query search to see if it contains errors.  Same query debugging as used in the front end.
 
         Keyword Args:
-            query: Search terms included in the query.
+            booleanQuery: Search terms included in the query.
             language: List of the languages in which you'd like to test the query - Optional.
 
         Raises:
             KeyError: If you don't pass a search or if the search has errors in it.
         """
-        if "query" not in kwargs:
+        if "booleanQuery" not in kwargs:
             raise KeyError("Must pass: query = 'search terms'")
         if "language" not in kwargs:
             kwargs["language"] = ["en"]
 
         valid_search = self.request(
-            verb=requests.get, address="query-validation", params=kwargs
+            verb=requests.post, address="query-validation", params=kwargs
         )
         return valid_search
 
@@ -141,14 +159,14 @@ def validate_rule_search(self, **kwargs):
         Checks a rule search to see if it contains errors.  Same rule debugging as used in the front end.
 
         Keyword Args:
-            query: Search terms included in the rule.
+            booleanQuery: Search terms included in the rule.
             language: List of the languages in which you'd like to test the query - Optional.
 
         Raises:
             KeyError: If you don't pass a search or if the search has errors in it.
         """
-        if "query" not in kwargs:
-            raise KeyError("Must pass: query = 'search terms'")
+        if "booleanQuery" not in kwargs:
+            raise KeyError("Must pass: booleanQuery = 'search terms'")
         if "language" not in kwargs:
             kwargs["language"] = ["en"]
 
@@ -258,6 +276,7 @@ def __init__(
         grant_type="api-password",
         client_id="brandwatch-api-client",
         apiurl="https://api.brandwatch.com/",
+        secondary_user = None
     ):
         """
         Creates a BWProject object - inheriting directly from the BWUser class.
@@ -269,6 +288,10 @@ def __init__(
             token:          Access token - Optional.
             token_path:     File path to the file where access tokens will be read from and written to - Optional.
         """
+        if secondary_user:
+            grant_type="application-become"
+            client_id="brandwatch-application-client"
+        
         super().__init__(
             token=token,
             token_path=token_path,
@@ -277,6 +300,7 @@ def __init__(
             grant_type=grant_type,
             client_id=client_id,
             apiurl=apiurl,
+            secondary_user = secondary_user
         )
         self.project_name = ""
         self.project_id = -1
diff --git a/src/bcr_api/bwresources.py b/src/bcr_api/bwresources.py
old mode 100644
new mode 100755
index 0a35fd2..1bc234b
--- a/src/bcr_api/bwresources.py
+++ b/src/bcr_api/bwresources.py
@@ -273,9 +273,8 @@ def upload(self, create_only=False, modify_only=False, **kwargs):
             startDate: Date for query data to be collected from (equivalent to backfill_date in Analytics SDK)
             contentSources: Optional, defaults to same sources in UI
             description: Optional, defaults to empty string (e.g. "a query to find mentions about cats and dogs")
-            languages: Optional, defaults to en
-            languageAgnostic: Optional, set to True instead of passing in a language for the query to match against all mentions regardless of language (generally not recommended)
-            monitor_sample_percentage: Optional, defaults to 100 (percent)
+            languages: Optional, defaults to en. Pass in no arguments to make the query language agnostic
+            samplePercentage: Optional, defaults to 100 (percent)
             query_type: Optional, defaults to 'monitor'
 
         Raises:
@@ -296,9 +295,8 @@ def upload_all(self, data_list, create_only=False, modify_only=False):
             startDate: Date for query data to be collected from (equivalent to backfill_date in Analytics SDK)
             contentSources: Optional, defaults to same sources in UI
             description: Optional, defaults to empty string (e.g. "a query to find mentions about cats and dogs")
-            languages: Optional, defaults to en
-            languageAgnostic: Optional, set to True instead of passing in a language for the query to match against all mentions regardless of language (generally not recommended)
-            monitor_sample_percentage: Optional, defaults to 100 (percent)
+            languages: Optional, defaults to en. Pass in no arguments to make the query language agnostic
+            samplePercentage: Optional, defaults to 100 (percent)
             query_type: Optional, defaults to 'monitor'
 
         Raises:
@@ -329,10 +327,10 @@ def rename(self, name, new_name):
             raise KeyError(
                 "Cannot rename a " + self.resource_type + " which does not exist", name
             )
-        else:
+        else: #does exist
             info = self.get(name=name)
             info.pop("name")
-            if info["type"] == "search string":
+            if info["type"] == "monitor":
                 self.upload(name=name, new_name=new_name, **info)
             else:
                 raise KeyError(
@@ -465,11 +463,6 @@ def _fill_data(self, data):
         if ("name" not in data) or ("booleanQuery" not in data):
             raise KeyError("Need name and booleanQuery to post query", data)
 
-        if ("language" in data) and ("languageAgnostic" in data):
-            raise ValueError(
-                "Please choose either to specify languages or a language agnostic query"
-            )
-
         filled["booleanQuery"] = data["booleanQuery"]
 
         # if resource exists, create value for filled['id']
@@ -482,12 +475,13 @@ def _fill_data(self, data):
 
         # params with default values
         filled["type"] = data.get("query_type", "monitor")
-        filled["languageAgnostic"] = data.get("languageAgnostic", False)
         filled["contentSources"] = data.get("contentSources", default_content_sources)
-        filled["monitorSamplePercentage"] = data.get("monitorSamplePercentage", 100)
+        filled["samplePercentage"] = data.get("samplePercentage", 100)
         filled["description"] = data.get("description", "")
-        # currently languages field defaults to 'en', similar to UI, but it could alternatively default to False, to create a language agnostic query
-        filled["languages"] = data.get("languages", "en")
+        # currently languages field defaults to 'en', similar to UI, but it could alternatively default to an empty list, to create a language agnostic query
+        filled["languages"] = data.get(
+            "languages", "en"
+        )  # BUG: Might need to turn single item into list
         # If user passes in string to languages parameter, turn into a list containing only that string
         if isinstance(filled["languages"], str):
             filled["languages"] = [filled["languages"]]
@@ -495,6 +489,9 @@ def _fill_data(self, data):
         # optional params, with no defaults
         if "startDate" in data:
             filled["startDate"] = data["startDate"]
+        # languageAgnostic is a deprecated variable. If a user does not pass in any language arguments, the languages attribute will create an empty list.
+        if "language" not in data:
+            filled["languages"] = []
 
         # validating the query search - comment this out to skip validation
         self.project.validate_query_search(
@@ -1842,4 +1839,4 @@ def _name_to_id(self, attribute, setting):
             else:
                 return {"excludeTagIds": ids}
         else:
-            return {}
+            return {}
\ No newline at end of file
diff --git a/src/bcr_api/filters.py b/src/bcr_api/filters.py
old mode 100644
new mode 100755
index 9754130..4b70334
--- a/src/bcr_api/filters.py
+++ b/src/bcr_api/filters.py
@@ -143,25 +143,37 @@
         "blog",
         "forum",
         "news",
-        "general",
-        "video",
         "twitter",
         "review",
-        "image",
         "instagram",
         "facebook",
+        "qq",
+        "reddit",
+        "tumblr",
+        "vk",
+        "youtube",
+        "lexis_nexis_licensed_news",
+        "dark_web",
+        "sina_weibo",
+        "four_chan",
     ],
     "xpageType": [
         "blog",
         "forum",
         "news",
-        "general",
-        "video",
         "twitter",
         "review",
-        "image",
         "instagram",
         "facebook",
+        "qq",
+        "reddit",
+        "tumblr",
+        "vk",
+        "youtube",
+        "lexis_nexis_licensed_news",
+        "dark_web",
+        "sina_weibo",
+        "four_chan",
     ],
     "accountType": ["individual", "organizational"],
     "xaccountType": ["individual", "organizational"],
@@ -266,4 +278,4 @@
     "removeStatus": ["open", "pending", "closed"],
     "priority": ["high", "medium", "low"],
     "removePriority": ["high", "medium", "low"],
-}
+}
\ No newline at end of file