No, there is no D-TO to my knowledge. Checking the thrust rating on the CDU is essential to avoid having the wrong "max thrust" selected. On my airling, a derated thrust was never used, not sure if other airlines even do that...
The effect of R-CLB washes out to 15.000 feet, but I am not sure if the label will change from R-CLB to CLB... something I never consciously watched in 10 years of flying the plane. Simply don´t know and the manual doesn´t state it clearly, either.
Jan