diff --git a/app/src/main/java/com/etesync/syncadapter/journalmanager/JournalManager.kt b/app/src/main/java/com/etesync/syncadapter/journalmanager/JournalManager.kt
index 130a7a86..3b463772 100644
--- a/app/src/main/java/com/etesync/syncadapter/journalmanager/JournalManager.kt
+++ b/app/src/main/java/com/etesync/syncadapter/journalmanager/JournalManager.kt
@@ -190,15 +190,18 @@ class JournalManager(httpClient: OkHttpClient, remote: HttpUrl) : BaseManager()
     class Member {
         val user: String?
         val key: ByteArray?
+        val readOnly: Boolean
 
         private constructor() {
             this.user = null
             this.key = null
+            this.readOnly = false
         }
 
-        constructor(user: String, encryptedKey: ByteArray) {
+        constructor(user: String, encryptedKey: ByteArray, readOnly: Boolean = false) {
             this.user = user
             this.key = encryptedKey
+            this.readOnly = readOnly
         }
 
         internal fun toJson(): String {
diff --git a/app/src/main/java/com/etesync/syncadapter/ui/AddMemberFragment.kt b/app/src/main/java/com/etesync/syncadapter/ui/AddMemberFragment.kt
index 31b73ed7..4f769c23 100644
--- a/app/src/main/java/com/etesync/syncadapter/ui/AddMemberFragment.kt
+++ b/app/src/main/java/com/etesync/syncadapter/ui/AddMemberFragment.kt
@@ -26,12 +26,14 @@ class AddMemberFragment : DialogFragment() {
     private lateinit var info: CollectionInfo
     private lateinit var memberEmail: String
     private lateinit var memberPubKey: ByteArray
+    private var readOnly: Boolean = false
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         account = arguments?.getParcelable(Constants.KEY_ACCOUNT)!!
         info = arguments?.getSerializable(Constants.KEY_COLLECTION_INFO) as CollectionInfo
         memberEmail = arguments?.getString(KEY_MEMBER)!!.toLowerCase()
+        readOnly = arguments?.getBoolean(KEY_READ_ONLY)!!
         ctx = context
         try {
             settings = AccountSettings(ctx!!, account)
@@ -105,7 +107,7 @@ class AddMemberFragment : DialogFragment() {
                 val crypto = Crypto.CryptoManager(info.version, settings!!.password(), info.uid!!)
 
                 val encryptedKey = crypto.getEncryptedKey(settings!!.keyPair!!, memberPubKey)
-                val member = JournalManager.Member(memberEmail, encryptedKey!!)
+                val member = JournalManager.Member(memberEmail, encryptedKey!!, readOnly)
                 journalsManager.addMember(journal, member)
                 return AddResultSecond(null)
             } catch (e: Exception) {
@@ -132,13 +134,15 @@ class AddMemberFragment : DialogFragment() {
 
     companion object {
         private val KEY_MEMBER = "memberEmail"
+        private val KEY_READ_ONLY = "readOnly"
 
-        fun newInstance(account: Account, info: CollectionInfo, email: String): AddMemberFragment {
+        fun newInstance(account: Account, info: CollectionInfo, email: String, readOnly: Boolean): AddMemberFragment {
             val frag = AddMemberFragment()
             val args = Bundle(1)
             args.putParcelable(Constants.KEY_ACCOUNT, account)
             args.putSerializable(Constants.KEY_COLLECTION_INFO, info)
             args.putString(KEY_MEMBER, email)
+            args.putBoolean(KEY_READ_ONLY, readOnly)
             frag.arguments = args
             return frag
         }
diff --git a/app/src/main/java/com/etesync/syncadapter/ui/CollectionMembersActivity.kt b/app/src/main/java/com/etesync/syncadapter/ui/CollectionMembersActivity.kt
index 579666a0..7269a9f6 100644
--- a/app/src/main/java/com/etesync/syncadapter/ui/CollectionMembersActivity.kt
+++ b/app/src/main/java/com/etesync/syncadapter/ui/CollectionMembersActivity.kt
@@ -7,6 +7,7 @@ import android.os.Bundle
 import android.support.v7.app.AlertDialog
 import android.text.InputType
 import android.view.View
+import android.widget.CheckBox
 import android.widget.EditText
 import android.widget.TextView
 import com.etesync.syncadapter.App
@@ -83,17 +84,18 @@ class CollectionMembersActivity : BaseActivity(), Refreshable {
     }
 
     fun onAddMemberClicked(v: View) {
-        val input = EditText(this)
-        input.inputType = InputType.TYPE_CLASS_TEXT or InputType.TYPE_TEXT_VARIATION_EMAIL_ADDRESS
+        val view = View.inflate(this, R.layout.add_member_fragment, null)
         val dialog = AlertDialog.Builder(this)
                 .setTitle(R.string.collection_members_add)
                 .setIcon(R.drawable.ic_account_add_dark)
                 .setPositiveButton(android.R.string.yes) { _, _ ->
-                    val frag = AddMemberFragment.newInstance(account, info, input.text.toString())
+                    val input = view.findViewById<EditText>(R.id.username)
+                    val readOnly = view.findViewById<CheckBox>(R.id.read_only).isChecked
+                    val frag = AddMemberFragment.newInstance(account, info, input.text.toString(), readOnly)
                     frag.show(supportFragmentManager, null)
                 }
                 .setNegativeButton(android.R.string.no) { _, _ -> }
-        dialog.setView(input)
+        dialog.setView(view)
         dialog.show()
     }
 
diff --git a/app/src/main/res/layout/add_member_fragment.xml b/app/src/main/res/layout/add_member_fragment.xml
new file mode 100644
index 00000000..836db366
--- /dev/null
+++ b/app/src/main/res/layout/add_member_fragment.xml
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical">
+
+    <EditText
+        android:id="@+id/username"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:hint="@string/login_email_address"
+        android:inputType="textEmailAddress" />
+
+    <CheckBox
+        android:id="@+id/read_only"
+        android:text="Read only?"
+        style="?android:attr/textAppearanceMedium"
+        android:layout_width="fill_parent"
+        android:layout_height="wrap_content"
+        android:layout_margin="5dp" />
+</LinearLayout>