(3) Override default Salesforce buttons
<For Standard Objects>
In Salesforce, click 【Setup】→【Customize】→【Target Object】→【Buttons and Links】
<For Custom Objects>
In Salesforce, click 【Setup】→【Create】→【Objects】→【Target object】→【Standard Buttons and Links section】
Click the Edit link from section 【Standard Buttons and Links】to override the destination of that button.
Select a Visualforce page made with SkyVisualEditor and click the Save button.
We recommend to only override reference pages (Like View) with other reference pages.