Go to;
Create Disc Menu
Create Disc Preferences (button on bottom row; mid / left hand side with 'spanner' and 3 horizontal lines on it)
Menu tab
User defined menu duration
Never used to work all the time but I think it has been fixed; most recent menu I did ran for 45 seconds which is what I set it for
Hope this helps
Director Suite 365
AMD FX-8320 3.50 GHz Eight-Core
Samsung SSD 850 EVO 250gb (OS)
Seagate 2TB SATA-III Hybrid 7200RPM Hard Drive (Data)
Toshiba 4TB SATA-III Hard drive (Archive)
24GB Memory
Nvidia GeForce GTX 650 2gb
Microsoft® Windows 10 (64-bit)