Added hint text

app/src/main/res/layout/fragment_options_encryption.xml

@@ -62,7 +62,6 @@
             app:layout_constraintTop_toBottomOf="@id/swEncrypt"
             app:switchPadding="12dp" />
 
-
         <!-- PGP -->
 
         <eu.faircode.email.FixedTextView
@@ -190,6 +189,18 @@
             app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintTop_toBottomOf="@id/btnImportKey" />
 
+        <eu.faircode.email.FixedTextView
+            android:id="@+id/tvManageKeysHint"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_marginEnd="48dp"
+            android:text="@string/title_advanced_manage_keys_hint"
+            android:textAppearance="@style/TextAppearance.AppCompat.Small"
+            android:textStyle="italic"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@id/btnManageKeys" />
+
         <Button
             android:id="@+id/btnCa"
             style="?android:attr/buttonStyleSmall"
@@ -198,7 +209,7 @@
             android:layout_marginTop="12dp"
             android:text="@string/title_advanced_ca"
             app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintTop_toBottomOf="@id/btnManageKeys" />
+            app:layout_constraintTop_toBottomOf="@id/tvManageKeysHint" />
 
         <eu.faircode.email.FixedTextView
             android:id="@+id/tvKeySize"

app/src/main/res/values/strings.xml

@@ -456,6 +456,10 @@
     <string name="title_advanced_import_key">Import private key</string>
     <string name="title_advanced_manage_keys">Manage private keys</string>
     <string name="title_advanced_ca">Installed CA certificates</string>
+    <string name="title_advanced_manage_keys_hint">
+        This will navigate to the Android security settings.
+        Keys and certificates can generally be found under Advanced - Encryption and credentials.
+    </string>
     <string name="title_advanced_aes_key_size" translatable="false">Max AES key size: %1$d</string>
 
     <string name="title_advanced_external_search">Allow other apps to search in messages</string>