diff --git a/filecloudapi/fcserver.py b/filecloudapi/fcserver.py
index f591151..f3e0241 100644
--- a/filecloudapi/fcserver.py
+++ b/filecloudapi/fcserver.py
@@ -998,6 +998,15 @@ def adduserstoshare(
 
         self._raise_exception_from_command(resp)
 
+    def addgrouptoshare(self, share: FCShare, groupid: str) -> None:
+        """
+        Allow group access to share
+        """
+        resp = self._api_call(
+            "/core/addgrouptoshare", {"shareid": share.shareid, "groupid": groupid}
+        )
+        self._raise_exception_from_command(resp)
+
     def createfolder(
         self,
         path: str,
@@ -1071,6 +1080,35 @@ def setuseraccessforshare(
         )
         self._raise_exception_from_command(resp)
 
+    def setgroupaccessforshare(
+        self,
+        share: FCShare,
+        groupid: str,
+        allowwrite: bool,
+        allowdownload: bool,
+        allowshare: bool,
+        allowsync: bool,
+        disallowdelete: bool,
+        adminproxyuserid: Optional[str] = None,
+    ) -> None:
+        """
+        Set group permissions for share
+        """
+        resp = self._api_call(
+            "/core/setgroupaccessforshare",
+            {
+                "shareid": share.shareid,
+                "groupid": groupid,
+                "write": "true" if allowwrite else "false",
+                "download": "true" if allowdownload else "false",
+                "share": "true" if allowshare else "false",
+                "sync": "true" if allowsync else "false",
+                "disallowdelete": "true" if disallowdelete else "false",
+                "adminproxyuserid": adminproxyuserid if adminproxyuserid else "",
+            },
+        )
+        self._raise_exception_from_command(resp)
+
     def getusersforshare(self, share: FCShare) -> list[FCShareUser]:
         """
         Returns a list of users that are added explicitly to the share