Together with Estatik Pro plugin Request form widget is installed as well. You can find it in Appearance >> Widgets in Available widgets area.
Drag and drop it to the required Sidebar and configure its settings: title, request message and receiver options.
Messages from Estatik Request form can be sent to Admin, Agent or Admin&Agent.
Admin email address set up is General Settings of website, and Agent's email is the onу used for Agent's registration.
Along with Request title and message you can also change the subject of email that will be received.