November 20, 2014, 01:33:50 pm
No problem, you can either add more camera keyframes while in record mode, or click on the arrows at the far left to make the clip longer.
This has been made more user-friendly in later versions of Lumion, so that you can see the clip duration all the time while in record mode.
(By the way, you can get a fully functional 7-day trial version of Lumion Pro 4.5.1 by contacting your local reseller)