Current version of CSPM does not support scheduling of IDS reports.
You will have to run them manually yourself, or find a gui test tool that can mimic a user requesting the manual run of the reports. The GUI test tools to do this can be expensive and time consuming to get working so I don't recommend using them.
The other alternative you have is to export the alarms from CSPM using cvtnrlog and import them into your own database. Then create your own reports fromyou own database. This is the route many users have gone when requiring scheduled reports.
This feature may already be planned for the next IDS management release.
Contact your Cisco Sales Representative to determine if that feature is making it into the next version.