Button Script - Page insert
You can insert your button script into the existing HTML page. To do so, click "Page insert" button on the Toolbar. "Insert the buttons to your page" dialog will appear. Click "Browse" button to choose a page you want to insert your menu into. After choosing a page and clicking "Ok", chosen page's HTML code will appear in the Code field of the dialog.
After that you can edit your code. Then set the cursor to the line you want menu code to be added to and click the "Insert" button. The menu code will be inserted into the page. Then you can either save the page or close the dialog without saving.