RQM Test Schedule - Key Dates and Test Schedules

Hi guys,

Another question I have in the RQM Usage Model is the Key Dates data table. In my process, this kind of information on Test Plan is useless, as we already have the milestones in our RTC plan (in a CALM environment). I would like to know if information on the key dates data table is used elsewhere in RQM.

And for Test Schedules, I wouldn't like to update the dates frequently to reflect the project status (as I already have this information live on RTC). Can I create schedules filling only the name and the description (to enable association with TER)?. I know that filling partially the schedules, I will not be able to run the Execution Trend Report, but this report is not important as I am controling execution through RTC tasks.
The information I put on the Test Schedule is used as input to others RQM ootb reports?

Thanks in advance.