Changing header tray text for DTN

Dear experts,

Just a wild thought to make "Detail Navigations" "Portal Favorites" etc... on the left hand side to show text I want them to be. and group up some of the given role functions.

for example.

Messages - [this is header tray in the nice colored block]

coperate news [DTN panel item]

new task [DTN panel item]

rules of conduct [DTN panel item]

is this possible to do just by regular configs without making customized panel?

best regards,

Jim Hsu