Creating Add button on Web Applets

Hi Guys,

I am looking at replacing the opportunity and opportunity product revenue tab from the generic view and replace it with a custom tab.

I plan to do this so that when a user visits an account, they can see the opportunity sorted by closed date and then by probability.

For the opportunity product tab, they would be able to see frequency/# of periods etc.

The users should be OK with disabled in-line edit feature, however if there is a way to retain this feature under the custom web applet functionality, I would be interested in knowing how this can be done.