SharePoint 2007 : Edit option missing

Scenario:
While I myself is wondering that I don't have it posted. I come across this problem every now and then.

Edit option is missing on some Content pages , like NewItem.aspx , EditItem.aspx etc. and you want to add some message / webpart to these page.

Solution:
1. Navigate to the page
2. In the browser address bar type the following line of code below.

javascript:MSOLayout_ToggleLayoutMode();

3. Hit the enter key.

Recommendation
In case you often need this, you can save the page as favorite and in the url section specify the javascript. So next time onwards , when ever you want to toggle the mode, navigate to the page and click on page link you saved.