Using "propose changes" on CIs in change management

Hi everyone,
We would like to try and enforce that staff add proposed values on their linked affected CIs during the change process and then press the Apply button when the chage is completed.
So we wanted to have a way of highlighting whether some proposed values have actually been entered: as far as I can see the "apply changes" button appears as soon as you add an affected CI and if you look at the CI record you cannot see what the "proposed" chnages are.

Has any one out there done something like this? Can it be done? Any ideas would be most gratefully received,

Thanks in advance, Ruth