I would like to ask for an additional option to have the possibility for requesting descent. Because i really have to use the descent profile calculation of my A320, i´am desperate for an option to request descent from ATC once i have reached my TOD or shortly before. It´s very rare that i´am instructed to descent at pilots discretion and usually the instruction to descent comes way too early or way too late i would really appreciate to be able to request the descent at my whish. In addition to this i am also missing an option to request a "further descent" to prevent from level off at the given step altitude and getting the next further descent instructions too late.
I know that i can reqest a lower flightlevel, but that´s just not the same as requesting the descent at TOD is reached.