I can not add new secondary domain to the VDS - the button is disabled.
After update Server Director 3.7 with UP1, a new feature was added - Domain Limitation:
This adds the capability of limiting the number of secondary domains added to VDS. A domains node is added to the
VDS's template in the hostdir.xml file:
max_instances="-1" (0=unlimited, 1=not allowed)
The domains node will be added for each VDS.
Each "add domain" operation will be validated comparing it to the max_instances value.
The new property will be provisioned only via API.
In order to update this parameter - use the following API command with the necessary number of instances.