Project progress based on project plan in portfolio report

TH has progress in Project Portfolio field which shows progress in Tasks. We need to see the project progress over time, i.e. whether the project is on time, behind schedule or ahead. We suggest adding an additional field "time", which would show the project progress over time. The progress bar would have different colours which would indicate whether the project is on time, behind schedule or ahead schedule (red, orange, green) and have % value. With this indicator we could easy see on Portfolio report progress in time and how much time is left per %. SPI index is OK but still we have to go to Timeline report and it show progress by Tasks. In general TH hasn't Time progress per Project or we can't find it :)