[ovirt-users] oVirt 4.2 and I/O threads configuration

Hello, in oVirt 4.1 I could enable I/O threads for a VM and then there was a field where I could define how many I/O threads (aka virtual scsi controllers from vm point of view). In 4.2 now I see only the option to enable them but not to specify the number. Next to the setting there is a symbol and a mouseover says "the field is not attached to any instance type" See this screenshot for the Edit VM -> Resource Allocation content: https://drive.google.com/file/d/1JzCiUBnWxS9fiY64_p5TJMY0uO5ZZUID/view?us... Any hints for setting the number? Thanks in advance, Gianluca