E-mail all responsible persons

Hi, how does a manager send email to lower level units from web interface. There is an option " New E-Mail to All Responsible Persons: " but it doesn't send the link for planning. In top down planning, how does a boss send an email to his staff after getting an e-mail for forecasting from his manager. Do we have to set up sub-plans for individual hierarchies? Thanks in advance.

Venkat