this is the situation:
On 1 plan there are 2 different frequencies: a 2000 hour check and a 6000 hour check. At the moment of the 6000 hours, the 2000 hours needs to be carried out also (so no hierarchical setup is needed).
The 6000 hour check should not be influenced by the moment the 2000 hours checks are done.
The 6000 hour check should restart the 2000 hour.
Thank you for yuor advice