Scheduled tasks 'Tools' area blank

[TaskSoftware]

[SOLVED] Scheduled tasks 'Tools' area blank

I use Plesk 9.5

I'm trying to add a new scheduled task using a customer's user (not admin), and the area 'Tools' where it should appear the 'Schedule New Task' icon are in blank. Do I need to activate this somewhere? When I log in with the admin user, I can see the icon and it allows me to add a new task as it should normally.

 

[TaskSoftware]

For those with the same 'problem':
You need to activate the 'Scheduler management' feature for the domain on 'Interface Preferences'.