diff --git a/.idea/dictionaries/tateisu.xml b/.idea/dictionaries/tateisu.xml
index 62bb3cc6..e6745af9 100644
--- a/.idea/dictionaries/tateisu.xml
+++ b/.idea/dictionaries/tateisu.xml
@@ -14,6 +14,7 @@
       <w>reblogs</w>
       <w>subwaytooter</w>
       <w>swipy</w>
+      <w>tateisu</w>
       <w>timelines</w>
       <w>unfavourite</w>
       <w>unfollow</w>
diff --git a/app/src/main/java/jp/juggler/subwaytooter/ActAbout.java b/app/src/main/java/jp/juggler/subwaytooter/ActAbout.java
index 14f50cc5..4dc685b2 100644
--- a/app/src/main/java/jp/juggler/subwaytooter/ActAbout.java
+++ b/app/src/main/java/jp/juggler/subwaytooter/ActAbout.java
@@ -13,8 +13,11 @@ import android.widget.TextView;
 
 public class ActAbout extends AppCompatActivity {
 	
+	static final String EXTRA_SEARCH = "search";
+	
 	static final String url_store = "https://play.google.com/store/apps/details?id=jp.juggler.subwaytooter";
 	static final String url_enty = "https://enty.jp/3WtlzHG10wZv";
+	static final String developer_acct = "tateisu@mastodon.juggler.jp";
 	
 	@Override protected void onCreate( @Nullable Bundle savedInstanceState ){
 		super.onCreate( savedInstanceState );
@@ -26,8 +29,20 @@ public class ActAbout extends AppCompatActivity {
 		}catch( PackageManager.NameNotFoundException ex ){
 			ex.printStackTrace();
 		}
+		Button b;
 		
-		Button b = (Button) findViewById( R.id.btnRate );
+		b =  (Button) findViewById( R.id.btnDeveloper );
+		b.setText( developer_acct );
+		b.setOnClickListener( new View.OnClickListener() {
+			@Override public void onClick( View v ){
+				Intent data = new Intent();
+				data.putExtra(EXTRA_SEARCH,developer_acct);
+				setResult( RESULT_OK,data );
+				finish();
+			}
+		} );
+		
+		b = (Button) findViewById( R.id.btnRate );
 		b.setText( url_store );
 		b.setOnClickListener( new View.OnClickListener() {
 			@Override public void onClick( View v ){
diff --git a/app/src/main/java/jp/juggler/subwaytooter/ActMain.java b/app/src/main/java/jp/juggler/subwaytooter/ActMain.java
index 8c25702d..8cd87cd4 100644
--- a/app/src/main/java/jp/juggler/subwaytooter/ActMain.java
+++ b/app/src/main/java/jp/juggler/subwaytooter/ActMain.java
@@ -147,6 +147,7 @@ public class ActMain extends AppCompatActivity
 	
 	static final int REQUEST_CODE_COLUMN_LIST = 1;
 	static final int REQUEST_CODE_ACCOUNT_SETTING = 2;
+	static final int REQUEST_APP_ABOUT = 3;
 	
 	@Override
 	protected void onActivityResult( int requestCode, int resultCode, Intent data ){
@@ -173,6 +174,14 @@ public class ActMain extends AppCompatActivity
 					startAccessTokenUpdate( data );
 					return;
 				}
+			}else if( requestCode == REQUEST_APP_ABOUT ){
+				if( data != null ){
+					String search = data.getStringExtra( ActAbout.EXTRA_SEARCH );
+					if( ! TextUtils.isEmpty( search ) ){
+						performAddTimeline( Column.TYPE_SEARCH, search, true );
+					}
+					return;
+				}
 			}
 		}
 		super.onActivityResult( requestCode, resultCode, data );
@@ -277,7 +286,7 @@ public class ActMain extends AppCompatActivity
 			performColumnList();
 			
 		}else if( id == R.id.nav_add_tl_search ){
-			performAddTimeline( Column.TYPE_SEARCH );
+			performAddTimeline( Column.TYPE_SEARCH, "", false );
 			
 		}else if( id == R.id.nav_app_about ){
 			openAppAbout();
@@ -670,16 +679,16 @@ public class ActMain extends AppCompatActivity
 		addColumn( access_info, Column.TYPE_CONVERSATION, status.id );
 	}
 	
-	private void performAddTimeline( final int type ){
+	private void performAddTimeline( final int type, final Object... args ){
 		AccountPicker.pick( this, true, new AccountPicker.AccountPickerCallback() {
-			@Override
-			public void onAccountPicked( SavedAccount ai ){
+			@Override public void onAccountPicked( SavedAccount ai ){
 				switch( type ){
 				default:
-					addColumn( ai, type, ai.id );
+					addColumn( ai, type, args );
 					break;
-				case Column.TYPE_SEARCH:
-					addColumn( ai, type, "", false );
+				
+				case Column.TYPE_PROFILE:
+					addColumn( ai, type, ai.id );
 					break;
 				}
 			}
@@ -1398,7 +1407,7 @@ public class ActMain extends AppCompatActivity
 				if( result == null ){
 					// cancelled.
 				}else if( who != null ){
-
+					
 					//	App1.relationship_map.addFollowing( access_info, who.id );
 //					if( callback != null )
 //						callback.onRelationChanged( App1.relationship_map.get( access_info, who.id ) );
@@ -1861,7 +1870,7 @@ public class ActMain extends AppCompatActivity
 	}
 	
 	private void openAppAbout(){
-		startActivity( new Intent( this, ActAbout.class ) );
+		startActivityForResult( new Intent( this, ActAbout.class ), REQUEST_APP_ABOUT );
 	}
 	
 }
diff --git a/app/src/main/res/layout/act_about.xml b/app/src/main/res/layout/act_about.xml
index 230ad46a..64285406 100644
--- a/app/src/main/res/layout/act_about.xml
+++ b/app/src/main/res/layout/act_about.xml
@@ -51,6 +51,27 @@
             android:layout_weight="0.2"
             />
 
+        <TextView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="@string/developer"
+            />
+
+        <Button
+            android:id="@+id/btnDeveloper"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:background="@drawable/btn_bg_transparent"
+            android:padding="8dp"
+            tools:text="tateisu@mastodon.juggler.jp"
+            android:textAllCaps="false"
+            />
+        <View
+            android:layout_width="0dp"
+            android:layout_height="0dp"
+            android:layout_weight="0.2"
+            />
+
         <TextView
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
@@ -63,7 +84,7 @@
             android:layout_height="wrap_content"
             android:background="@drawable/btn_bg_transparent"
             android:padding="8dp"
-            android:text="@string/rate_on_store"
+            tools:text="rate_on_store"
             android:textAllCaps="false"
             />
 
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 4f0c21c2..edcb0ad4 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -155,4 +155,5 @@
     <string name="prior_local_url_when_open_attachment">prior local URL when open attachment</string>
     <string name="disable_fast_scroller">disable fast scroller (app restart required)</string>
     <string name="delete_succeeded">delete succeeded</string>
+    <string name="developer">developer</string>
 </resources>