Add customizing size of pagination

src/components/rooms.js

@@ -1,8 +1,17 @@
 import React from "react";
-import { Datagrid, List, TextField } from "react-admin";
+import { Datagrid, List, TextField, Pagination } from "react-admin";
+
+const RoomPagination = props => (
+  <Pagination
+    {...props}
+    rowsPerPageOptions={[10, 25, 50, 100, 500, 1000]}
+  />);
 
 export const RoomList = props => (
-  <List {...props}>
+  <List
+    {...props}
+    pagination={<RoomPagination />}
+  >
     <Datagrid>
       <TextField source="room_id" />
       <TextField source="name" />

src/components/users.js

@@ -14,8 +14,15 @@ import {
   TextInput,
   ReferenceField,
   regex,
+  Pagination
 } from "react-admin";
 
+const UserPagination = props => (
+  <Pagination
+    {...props}
+    rowsPerPageOptions={[10, 25, 50, 100, 500, 1000]}
+  />);
+
 const UserFilter = props => (
   <Filter {...props}>
     <BooleanInput source="guests" alwaysOn />
@@ -33,6 +40,7 @@ export const UserList = props => (
     filters={<UserFilter />}
     filterDefaultValues={{ guests: true, deactivated: false }}
     bulkActionButtons={false}
+    pagination={<UserPagination />}
   >
     <Datagrid rowClick="edit">
       <ReferenceField