The CDL is airworthy indicated items that can be missing or partially missing (thinking of panels and say seals here). In our company these are time lifed dependant on the severity and may be resticted in number allowed missing or damaged (ie No of seals missing per wing).
Regarding inoping a valve and putting a sticker on the CB that would be part of the MEL M proceedure and considered as having complied with the MEL. By the way can't think of many instances of popping a CB as nowadays with the electronics we normally get the AV's to put a dummy plug in on the valve plug to short it out and fool the system which again most MEL M proceedures indicate.