You can create a default landing page for the agents by configuring /DCS-CSR/install/
data/csrOptions file. Change the defaultValue property of the GlobalOption item-descriptor with the id="AgentUserDefaultHomeTab” to the desired value.

For example, change the <set-property name="defaultValue" value="commerceTab"/> to <set-property name="defaultValue" value="orderTab"/> to change the default landing page to the order page.